Corrections to Previously Issued Consolidated Financial Statements - Schedule of Effect of Correction and Other Adjustments on Previously Reported Consolidated Statement of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Jun. 30, 2015 |
Sep. 30, 2015 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Net revenues: | ||||||||
| Rentals | $ 16,136 | $ 16,468 | $ 15,382 | $ 14,966 | $ 30,348 | $ 46,816 | $ 62,952 | $ 58,718 |
| Net revenues | 18,742 | 18,311 | 16,936 | 16,552 | 33,488 | 51,799 | 70,541 | 66,487 |
| Gross profit | 13,187 | 12,877 | 11,620 | 11,916 | 23,536 | 36,413 | 49,600 | 47,354 |
| Operating income | 2,488 | 2,330 | 1,083 | 1,379 | 2,462 | 4,792 | 7,280 | 9,331 |
| Income (loss) before income taxes | 2,221 | 1,945 | 696 | (873) | (177) | 1,768 | 3,989 | 6,210 |
| Income tax (expense) benefit | (696) | (807) | (54) | 354 | 299 | (508) | (1,204) | (2,853) |
| Net income (loss) | $ 1,525 | $ 1,138 | $ 642 | $ (519) | $ 122 | $ 1,260 | $ 2,785 | $ 3,357 |
| Net income (loss) per share: | ||||||||
| Basic | $ 0.07 | $ 0.05 | $ 0.03 | $ (0.02) | $ 0.01 | $ 0.06 | $ 0.13 | $ 0.15 |
| Diluted | $ 0.07 | $ 0.05 | $ 0.03 | $ (0.02) | $ 0.01 | $ 0.06 | $ 0.12 | $ 0.15 |
| As Previously Reported [Member] | ||||||||
| Net revenues: | ||||||||
| Rentals | $ 16,932 | $ 16,849 | $ 15,616 | $ 15,139 | $ 30,755 | $ 47,604 | $ 64,536 | |
| Net revenues | 19,538 | 18,692 | 17,170 | 16,725 | 33,895 | 52,587 | 72,125 | |
| Gross profit | 13,983 | 13,258 | 11,854 | 12,089 | 23,943 | 37,201 | 51,184 | |
| Operating income | 3,284 | 2,711 | 1,317 | 1,552 | 2,869 | 5,580 | 8,864 | |
| Income (loss) before income taxes | 3,017 | 2,326 | 930 | (700) | 230 | 2,556 | 5,573 | |
| Income tax (expense) benefit | (1,011) | (957) | (147) | 285 | 138 | (819) | (1,830) | |
| Net income (loss) | $ 2,006 | $ 1,369 | $ 783 | $ (415) | $ 368 | $ 1,737 | $ 3,743 | |
| Net income (loss) per share: | ||||||||
| Basic | $ 0.09 | $ 0.06 | $ 0.03 | $ (0.02) | $ 0.02 | $ 0.08 | $ 0.17 | |
| Diluted | $ 0.09 | $ 0.06 | $ 0.03 | $ (0.02) | $ 0.02 | $ 0.08 | $ 0.16 | |
| Adjustments [Member] | ||||||||
| Net revenues: | ||||||||
| Rentals | $ (796) | $ (381) | $ (234) | $ (173) | $ (407) | $ (788) | $ (1,584) | |
| Net revenues | (796) | (381) | (234) | (173) | (407) | (788) | (1,584) | |
| Gross profit | (796) | (381) | (234) | (173) | (407) | (788) | (1,584) | |
| Operating income | (796) | (381) | (234) | (173) | (407) | (788) | (1,584) | |
| Income (loss) before income taxes | (796) | (381) | (234) | (173) | (407) | (788) | (1,584) | |
| Income tax (expense) benefit | 315 | 150 | 93 | 69 | 161 | 311 | 626 | |
| Net income (loss) | $ (481) | $ (231) | $ (141) | $ (104) | $ (246) | $ (477) | $ (958) | |
| Net income (loss) per share: | ||||||||
| Basic | $ (0.02) | $ (0.01) | $ (0.01) | $ (0.02) | $ (0.04) | |||
| Diluted | $ (0.02) | $ (0.01) | $ (0.01) | $ (0.02) | $ (0.04) | |||
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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