Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Temporary Differences and Carryforwards that Gives Rise to Deferred Tax Assets and Liabilities (Detail)

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Income Taxes - Summary of Temporary Differences and Carryforwards that Gives Rise to Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Deferred Federal tax assets -    
Total deferred Federal tax assets $ 19,395 $ 19,591
Deferred Federal tax liabilities -    
Total deferred Federal tax liabilities (5,150) (3,583)
Net deferred tax assets 14,245 16,008
Deferred Federal Tax [Member]    
Deferred Federal tax assets -    
Bad debt reserves 1,612 1,618
Stock based compensation 636 383
Net operating loss 5,110 5,058
Accrued compensation 624 184
Alternative minimum tax credit 73 73
Inventories 52 44
Accrued rent 51 39
Goodwill and intangible assets 7,919 9,186
Research & Development Credits 418  
Other Credits 3  
Other 79  
Total deferred Federal tax assets 16,577 16,585
Deferred Federal tax liabilities -    
Depreciation and asset basis differences (3,358) (2,221)
Other (364)  
Total deferred Federal tax liabilities (3,722) (2,221)
Net deferred tax assets 12,855 14,364
Deferred State and Local Tax [Member]    
Deferred Federal tax liabilities -    
Net deferred tax assets $ 1,390 $ 1,644