Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current provision [Abstract]
Federal	$ 4,362	$ 3,426	$ 2,588
State	829	621	605
Total current	5,191	4,047	3,193
Deferred provision (benefit) [Abstract]
Federal	1,881	(718)	1,473
State	158	(91)	42
Total deferred	2,039	(809)	1,515
Total provision	7,230	3,238	4,708
Reconciliation of effective tax rate [Abstract]
Computed expected income tax provision (in hundredths)	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit (in hundredths)	3.60%	3.50%	5.60%
Change in valuation allowance for deferred tax assets (in hundredths)	(1.30%)	(1.40%)	(0.10%)
Other permanent differences (in hundredths)	(0.10%)	1.00%	2.20%
Dividend and accretion on preferred stock (in hundredths)	10.70%	34.10%	19.10%
FIN 48 liability (in hundredths)	0.60%	(1.60%)	0.00%
R&D credit (in hundredths)	0.00%	(1.80%)	0.00%
Other (in hundredths)	0.80%	0.20%	(1.10%)
Effective income tax rate (in hundredths)	49.30%	69.00%	60.70%
Deferred tax assets [Abstract]
Accounts receivable, principally due to allowance for doubtful accounts	123	144
Allowance for inventory obsolescence and amortization	628	785
Accrued liabilities not currently deductible	2,071	2,475
Accrued compensation	686	562
Amortization and depreciation	2,149	1,682
Telos ID basis difference	81	57
Net operating loss carryforwards - state	446	623
Total gross deferred tax assets	6,184	6,328
Less valuation allowance	(2,084)	(2,281)
Total deferred tax assets, net of valuation allowance	4,100	4,047
Deferred tax liabilities [Abstract]
Unbilled accounts receivable, deferred for tax purposes	(1,373)	(1,374)
Section 481(a) adjustment - inventory	(221)	(440)
Goodwill basis adjustment and amortization	(2,505)	(193)
Total deferred tax liabilities	(4,099)	(2,007)
Net deferred tax assets	1	2,040
Unrecognized tax benefits [Roll Forward]
Unrecognized tax benefits, beginning of period	400	501	316
Gross increases-tax positions in prior period	34	20	83
Gross increases-tax positions in current period	100	90	139
Settlements	0	(211)	(37)
Unrecognized tax benefits, end of period	534	400	501
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Period	2,281	2,348	2,388
Additions	0	0	0
Deductions	197	67	40
Balance End of Period	$ 2,084	$ 2,281	$ 2,348