Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 38,203,059	$ 39,866,037
Marketable securities	14,564,115	14,841,418
Accounts receivable, net of allowances	6,077,120	5,504,728
Inventories	4,270,143	5,600,319
Prepaid and other current assets	1,468,913	1,351,324
Deferred tax assets	2,528,724	3,651,145
Total current assets	67,112,074	70,814,971
Property and equipment, net	536,450	651,030
Intangible assets, net	21,168,596	21,568,541
Deferred tax assets	1,210,786	578,592
Other assets	1,891,053	1,791,980
Total assets	91,918,959	95,405,114
Current liabilities:
Accounts payable	2,877,479	3,242,713
Other current liabilities	9,534,268	10,506,769
Total current liabilities	12,411,747	13,749,482
Revolving line of credit	1,700,000	0
Other long-term liabilities	987,429	902,841
Total liabilities	$ 15,099,176	$ 14,652,323
Commitments and contingencies
Shareholders’ equity:
Common stock – no par value; 100,000,000 shares authorized; 16,379,501 and 17,118,993 shares issued and outstanding as of December 31, 2015 and 2014, respectively	$ 57,338,294	$ 61,942,410
Retained earnings	19,549,614	18,818,263
Total shareholders’ equity	76,887,908	80,760,673
Noncontrolling interests	(68,125)	(7,882)
Total equity	76,819,783	80,752,791
Total liabilities and equity	$ 91,918,959	$ 95,405,114

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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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.