CONSOLIDATED BALANCE SHEETS (in thousands, except share data) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 11,571	$ 11,268
Trade accounts receivable, net of allowance for doubtful accounts of $96 and $43, respectively	4,725	2,790
Inventories	4,059	3,705
Other current assets	483	577
TOTAL CURRENT ASSETS	20,838	18,340
Property, plant and equipment - net	1,875	1,237
Other assets	63	63
TOTAL ASSETS	22,776	19,640
Current Liabilities
Accounts payable	1,428	1,250
Accrued compensation	2,208	1,689
Deferred revenue	1,926	1,038
Other accrued liabilities	703	540
TOTAL CURRENT LIABILITIES	6,265	4,517
Long-term other payables	479	429
COMMITMENTS	0	0
STOCKHOLDERS' EQUITY
Preferred stock - Authorized, 5,000,000 shares, including 200,000 shares of Series A Junior Participating Issued and outstanding, none	0	0
Common stock, at stated value - Authorized, 30,000,000 shares Issued and outstanding, 8,015,746 shares as of December 31,2016 and 7,943,720 shares as of December 31, 2015	19,204	19,051
Accumulated earnings (deficit)	(3,360)	(5,016)
Accumulated other comprehensive income	188	659
TOTAL STOCKHOLDERS' EQUITY	16,032	14,694
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 22,776	$ 19,640

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.