CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 1,233	$ 1,001
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	443	519
Stock-based compensation	580	663
Amortization of discount on investments		(4)
Gain on sale of investments		(36)
Deferred tax expense on other comprehensive income		(10)
Increase (decrease) from changes in assets and liabilities:
Accounts receivable	379	602
Unbilled receivables	(1,850)	830
Prepaid expenses and other current assets	(68)	74
Deferred tax assets	(100)	13
Accounts payable	(40)	31
Accrued expenses	(82)	(15)
Accrued income taxes	(2)	2
Deferred revenue	167	(1)
Net cash provided by operating activities	660	3,669
Cash flows from investing activities:
Purchases of property and equipment	(206)	(82)
Sales of investments		1,019
Net cash provided by (used in) investing activities	(206)	937
Cash flows from financing activities:
Proceeds from issuance of common stock	50	61
Proceeds from exercise of stock options		13
Payments made for taxes of employees who surrendered shares related to unrestricted stock	(107)	(186)
Repurchase of common stock	(393)	(4,799)
Net cash used in financing activities	(450)	(4,911)
Increase/(decrease) in cash and cash equivalents	4	(305)
Cash and cash equivalents, beginning of year	51,608	51,913
Cash and cash equivalents, end of year	51,612	51,608
Supplemental disclosure:
Cash paid for income taxes	$ 96	$ 488