Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 30,118	$ 29,804
Receivables, less allowance for doubtful accounts of $597 at September 30, 2016 and $499 at December 31, 2015	22,307	17,481
Inventories	14,568	14,202
Prepaid expenses	2,161	930
Refundable income taxes	481	1,186
Total current assets	69,635	63,603
Property, plant and equipment	96,390	90,564
Less accumulated depreciation and amortization	(47,628)	(44,009)
Net property, plant and equipment	48,762	46,555
Goodwill	7,322	7,322
Intangible assets, net	397	636
Other assets	1,927	1,834
Total assets	128,043	119,950
Current liabilities:
Accounts payable	5,106	4,598
Accrued expenses	5,372	5,374
Current installments of long-term debt	1,028	1,011
Total current liabilities	11,506	10,983
Long-term debt, excluding current installments	84	859
Deferred income taxes	3,107	2,883
Other liabilities	1,858	1,653
Total liabilities	16,555	16,378
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.01 par value. Authorized 1,000,000 shares; zero shares issued or outstanding
Common stock, $.01 par value. Authorized 20,000,000 shares; issued and outstanding 7,228,048 at September 30, 2016 and 7,170,377 at December 31, 2015	72	72
Additional paid-in capital	25,142	23,705
Retained earnings	86,861	80,382
Treasury stock at cost - 29,559 at September 30, 2016 and December 31, 2015	(587)	(587)
Total stockholders’ equity	111,488	103,572
Total liabilities and stockholders' equity	$ 128,043	$ 119,950

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).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).