Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities
Net income	$ 1,147	$ 602
Adjustments to reconcile net income to net cash provided (used in) by operating activities:
Allowance for doubtful accounts	38	0
Inventories reserve	0	36
Deferred tax obligation	502	285
Depreciation and amortization	615	740
Share-based compensation expense	25	33
Changes in operating assets and liabilities:
Accounts receivable	(3,449)	(1,466)
Inventories	1,291	436
Prepaid expenses and other current assets	142	(87)
Other assets	22	17
Accounts payable	762	(194)
Accrued compensation and related taxes	243	(672)
Accrued warranty expense	28	6
Note payable	0	(18)
Deferred revenue	61	(143)
Accrued other expenses and other current liabilities	(8)	(9)
Net cash provided (used in) by operating activities	1,419	(434)
Investing activities
Purchases of property, plant and equipment	(328)	(88)
Capitalized software	0	(289)
Net cash used in investing activities	(328)	(377)
Financing activities
Proceeds from issuance of common stock	126	34
Cash provided by financing activities	126	34
Net change in cash and cash equivalents	1,217	(777)
Cash and cash equivalents, beginning of period	7,945	6,581
Cash and cash equivalents, end of period	9,162	5,804
Supplemental disclosure
Cash paid for interest	0	0
Income tax paid	0	0
Non-cash financing activity
Cashless exercise of stock options and related conversion of net shares to stockholders' equity	$ 2	$ 9