Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Beginning balance, shares at Dec. 31, 2017	3,014,494
Beginning balance, amount at Dec. 31, 2017	$ 3	$ 10,400	$ 34	$ 2,774	$ 13,211
Stock-based compensation expense		629			629
Exercise of stock awards, net of tax, shares	99,376
Exercise of stock awards, net of tax, amount		747			747
Shares issued upon acquisition of FSCwire (see Note 4), shares	3,402
Shares issued upon acquisition of FSCwire (see Note 4), amount		62			62
Secondary stock offering (see Note 7), shares	927,418
Secondary stock offering (see Note 7), amount	$ 1	13,322			13,323
Stock repurchase and retirement (see Note 7), shares	(215,118)
Stock repurchase and retirement (see Note 7), amount		(2,635)			(2,635)
Dividends				(460)	(460)
Foreign currency translation			(51)		(51)
Net income				837	837
Ending balance, shares at Dec. 31, 2018	3,829,572
Ending balance, amount at Dec. 31, 2018	$ 4	22,525	(17)	3,151	25,663
Stock-based compensation expense		523			523
Exercise of stock awards, net of tax, shares	32,996
Exercise of stock awards, net of tax, amount					0
Stock repurchase and retirement (see Note 7), shares	(76,170)
Stock repurchase and retirement (see Note 7), amount		(773)			(773)
Foreign currency translation			1		1
Net income				686	686
Ending balance, shares at Dec. 31, 2019	3,786,398
Ending balance, amount at Dec. 31, 2019	$ 4	$ 22,275	$ (16)	$ 3,837	$ 26,100