Kona Grill (KONA) 10-K 3 Mar 16 2015 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Feb. 29, 2016	Jun. 30, 2015
Entity Registrant Name	KONA GRILL INC
Entity Central Index Key	1,265,572
Trading Symbol	kona
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		11,267,091
Entity Public Float			$ 168,726
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 9,055,000	$ 36,578,000
Investments	178,000	178,000
Receivables	1,574,000	387,000
Other current assets	2,557,000	2,122,000
Total current assets	13,364,000	39,265,000
Other assets	1,228,000	1,171,000
Property and equipment, net	87,252,000	53,934,000
Total assets	101,844,000	94,370,000
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	4,548,000	3,205,000
Accrued expenses	14,282,000	9,042,000
Total current liabilities	18,830,000	12,247,000
Deferred rent	20,323,000	16,697,000
Total liabilities	$ 39,153,000	$ 28,944,000
Commitments and contingencies (Note 10)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,000,000 shares authorized; none issued	$ 0	$ 0
Common stock, $0.01 par value, 30,000,000 shares authorized, 11,387,724 shares issued and 11,271,524 shares outstanding at December 31, 2015 and 15,000,000 shares authorized, 11,325,338 shares issued and 11,209,138 shares outstanding at December 31, 2014	114,000	113,000
Additional paid-in capital	98,182,000	96,422,000
Accumulated deficit	(34,605,000)	(30,109,000)
Treasury stock, at cost, 116,200 shares at December 31, 2015 and 2014	(1,000,000)	(1,000,000)
Total stockholders’ equity	62,691,000	65,426,000
Total liabilities and stockholders’ equity	$ 101,844,000	$ 94,370,000

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	30,000,000	15,000,000
Common stock, shares issued (in shares)	11,387,724	11,325,338
Common stock, shares outstanding (in shares)	11,271,524	11,209,138
Treasury stock, shares (in shares)	116,200	116,200

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restaurant sales	$ 143,023,000	$ 119,097,000	$ 98,250,000
Costs and expenses:
Cost of sales	38,803,000	32,964,000	26,853,000
Labor	50,187,000	40,336,000	33,166,000
Occupancy	10,528,000	8,061,000	6,702,000
Restaurant operating expenses	20,293,000	16,358,000	13,456,000
General and administrative	12,612,000	10,715,000	7,854,000
Preopening expense	4,746,000	2,481,000	1,162,000
Depreciation and amortization	9,966,000	$ 7,220,000	5,918,000
Other	161,000		32,000
Total costs and expenses	147,296,000	$ 118,135,000	95,143,000
Income (loss) from operations	$ (4,273,000)	962,000	3,107,000
Write off of deferred financing costs		39,000	66,000
Interest expense, net	$ 180,000	220,000	160,000
Income (loss) before income taxes	(4,453,000)	$ 703,000	2,881,000
Income tax provision	43,000		169,000
Net income (loss)	$ (4,496,000)	$ 703,000	$ 2,712,000
Net income (loss) per share (Note 1):
Basic (in dollars per share)	$ (0.40)	$ 0.07	$ 0.32
Diluted (in dollars per share)	$ (0.40)	$ 0.07	$ 0.31
Weighted average shares outstanding (Note 1):
Weighted average shares — basic (in shares)	11,264	9,870	8,573
Weighted average shares — diluted (in shares)	11,264	10,263	8,762
Comprehensive income (loss)	$ (4,496,000)	$ 703,000	$ 2,712,000

Statement of Stockholders Equit

Statement of Stockholders Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balances (in shares) at Dec. 31, 2012	8,547,000
Balances at Dec. 31, 2012	$ 87,000	$ 53,305,000	$ (33,524,000)	$ (1,000,000)	$ 18,868,000
Stock-based compensation		584,000			584,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options (in shares)	80,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options		310,000			$ 310,000
Purchase and retirement of common stock (in shares)	(24,000)				24,098
Purchase and retirement of common stock		(203,000)			$ (203,000)
Tax benefits for stock option exercises		87,000			87,000
Net income			2,712,000		2,712,000
Total comprehensive income					2,712,000
Balances (in shares) at Dec. 31, 2013	8,603,000
Balances at Dec. 31, 2013	$ 87,000	54,083,000	(30,812,000)	(1,000,000)	22,358,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options (in shares)	261,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options	$ 3,000	627,000			$ 630,000
Purchase and retirement of common stock (in shares)					0
Tax benefits for stock option exercises		856,000			$ 856,000
Net income			703,000		703,000
Total comprehensive income					703,000
Balances (in shares) at Dec. 31, 2014	11,209,000
Balances at Dec. 31, 2014	$ 113,000	96,422,000	(30,109,000)	(1,000,000)	65,426,000
Issuance of common stock, net of offering expenses (in shares)	2,345,000
Issuance of common stock, net of offering expenses	$ 23,000	40,856,000			40,879,000
Stock-based compensation		1,363,000			1,363,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options (in shares)	81,000
Issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options	$ 1,000	624,000			625,000
Purchase and retirement of common stock (in shares)	(18,000)
Purchase and retirement of common stock		(227,000)			(227,000)
Net income			(4,496,000)		(4,496,000)
Total comprehensive income					(4,496,000)
Balances (in shares) at Dec. 31, 2015	11,272,000
Balances at Dec. 31, 2015	$ 114,000	$ 98,182,000	$ (34,605,000)	$ (1,000,000)	$ 62,691,000

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities
Net income (loss)	$ (4,496,000)	$ 703,000	$ 2,712,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	9,781,000	7,176,000	5,708,000
Stock-based compensation	$ 1,363,000	$ 856,000	584,000
Excess income tax benefits from stock option exercises			(87,000)
Loss on disposal of assets	$ 185,000	$ 44,000	210,000
Amortization of Financing Costs	$ 81,000	104,000	79,000
Write off of deferred financing costs		39,000	66,000
Change in operating assets and liabilities:
Receivables	$ (1,187,000)	458,000	(559,000)
Other current assets	(435,000)	(623,000)	(365,000)
Accounts payable	86,000	323,000	200,000
Accrued expenses	1,290,000	1,599,000	(10,000)
Deferred rent	3,626,000	4,065,000	922,000
Net cash provided by operating activities	10,294,000	14,744,000	9,460,000
Investing activities
Purchase of property and equipment	(38,077,000)	(21,855,000)	(14,445,000)
Change in other assets	(138,000)	(3,000)	(91,000)
Net cash used in investing activities	$ (38,215,000)	$ (21,858,000)	(14,536,000)
Financing activities
Debt borrowings			3,500,000
Debt repayments		$ (3,500,000)	(370,000)
Fees paid for credit facility		(198,000)	$ (356,000)
Proceeds from Issuance of Common Stock		40,879,000
Proceeds from issuance of common stock under the Employee Stock Purchase Plan and exercise of stock options	$ 625,000	1,466,000	$ 310,000
Payment for withholding tax from net settled stock option exercise		$ (836,000)
Excess income tax benefits from stock option exercises			$ 87,000
Purchase and retirement of common stock	$ (227,000)		(203,000)
Net cash provided by financing activities	398,000	$ 37,811,000	2,968,000
Net increase (decrease) in cash and cash equivalents	(27,523,000)	30,697,000	(2,108,000)
Cash and cash equivalents at the beginning of the year	36,578,000	5,881,000	7,989,000
Cash and cash equivalents at the end of the year	9,055,000	36,578,000	5,881,000
Supplemental disclosures of cash flow information
Cash paid for interest (net of capitalized interest)	99,000	161,000	112,000
Cash paid for income taxes, net of refunds	12,000	110,000	100,000
Noncash investing activities
Accounts payable and accrued expenses related to property and equipment purchases	$ 7,266,000	$ 2,060,000	$ 3,112,000

Note 1 - The Company and Summar

Note 1 - The Company and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. The Company and Summary of Significant Accounting Policies Description of Business Kona Grill, Inc., including its wholly-owned subsidiaries, (referred to herein as the “Company” or “we,” “us,” and “our”) owns and operates upscale casual dining restaurants under the name “Kona Grill.” Our restaurants feature a diverse selection of flavorful American favorites and award-winning sushi items that are prepared fresh daily at each restaurant location. As of December 31, 2015, we owned and operated 37 restaurants in 19 states throughout the United States and Puerto Rico. Our chief operating decision maker function is comprised of our Chief Executive Officer and Chief Financial Officer who manage our restaurant operation base that aggregates into one reportable segment. Accordingly, we have a single operating segment and reporting unit structure. Basis of Presentation The consolidated financial statements include the accounts and operations of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Reclassifications Certain reclassifications of prior year’s financial statement amounts have been made to conform to the current year presentation. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Cash and Cash Equivalents We consider all highly liquid investments that are readily convertible into cash and have an original maturity of three months or less at the time of purchase to be cash equivalents. Amounts receivable from credit card processors are also considered cash equivalents because they are both short-term and highly liquid in nature and are typically converted to cash within several business days of the sales transaction. Investments Investments consist primarily of certificates of deposit that are generally highly liquid in nature. We classify our investments based on the intended holding period. Inventory Inventory consists of food and beverage products that are valued at the lower of cost or market using the first-in, first-out method. Inventory is included in other current assets in the accompanying consolidated balance sheets. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, a three-tier value hierarchy was established, which prioritizes the inputs used in the valuation methodologies in measuring fair value. Level 1: Fair values determined by quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access. Level 2: Fair values utilize inputs other than quoted prices that are observable for the asset or liability, and may include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability. Level 3: Fair values determined by unobservable inputs that are not corroborated by market data and may reflect the reporting entity’s own assumptions market participants would use in pricing the asset or liability. Concentration of Credit Risk Financial instruments that potentially subject us to a concentration of credit risk principally consist of cash and cash equivalents, investments and accounts receivable. Concentration of credit risk is limited by diversifying cash deposits among a variety of high credit-quality issuers. At times, cash and cash equivalent balances may be in excess of the FDIC insurance limit. Property and Equipment Property and equipment are stated at cost less accumulated depreciation. We capitalize all direct costs on the construction of leasehold improvements and interest incurred during the construction and development period. Leasehold improvements are amortized over the shorter of the useful life of the asset or the related lease term that includes reasonably assured lease renewals as determined on the date of acquisition of the leasehold improvement. Improvements that materially extend the life of an asset are capitalized while repair and maintenance costs are expensed as incurred. Depreciation and amortization are recorded on a straight-line basis over the following estimated useful lives: Furniture and fixtures (years) 5 - 7 Equipment 2 - 7 Computer software and electronic equipment 3 Leasehold improvements Shorter of the useful life or the lease term We evaluate property and equipment for impairment whenever events or changes in restaurant operating results indicate that the carrying value of those assets may not be recoverable. Factors considered include, but are not limited to, significant underperformance relative to expected historical or projected future operating results; significant negative industry or economic trends; and significant changes in legal factors or in the business climate. The assessment of impairment is performed on a restaurant-by-restaurant basis. Recoverability is assessed by comparing the carrying value of the asset to the undiscounted cash flows expected to be generated by the asset. This assessment process requires the use of estimates and assumptions regarding future cash flows and estimated useful lives, which are subject to a significant degree of judgment. If indicators of impairment are present and if we determine that the carrying value of the asset exceeds the fair value of the restaurant assets, an impairment charge is recorded to reduce the carrying value of the asset to its fair value. Leases We lease our restaurant locations under operating lease agreements with initial terms of approximately 10 to 20 years. Most of these agreements require minimum annual rent payments plus contingent rent payments based on a percentage of restaurant sales which exceed the minimum base sales threshold. Contingent rent payments, to the extent they exceed minimum payments, are accrued over the periods in which the liability is incurred. Rent expense associated with these contingent payments is recorded prior to the achievement of specified sales levels if exceeding such amount is considered probable and is estimable. The lease agreements typically also require scheduled increases to minimum annual rent payments. For leases that contain rent escalations, we record the total rent payable over the initial lease term, starting on the date we gain possession of the property (including the construction period), on a straight-line basis. Any difference between minimum rent and straight-line rent is recorded as deferred rent. Deferred rent also includes tenant improvement allowances which are amortized as a reduction of rent expense on a straight-line basis over the term of the lease. As part of the initial lease terms, we negotiate with our landlords to secure these tenant improvement allowances and record such allowances as lease incentive receivables when determined to be collectible. These amounts are included in receivables on the balance sheet. Revenue Recognition Revenues from food, beverage, and alcohol sales are recognized when payment is tendered at the point of sale. Restaurant sales are recorded net of promotions and discounts. Revenues from gift card sales are recognized upon redemption. Prior to redemption, the outstanding balances of all gift cards are included in accrued expenses in the accompanying consolidated balance sheets. Sales Taxes Revenues are presented net of sales taxes. The sales tax obligation is included in accrued expenses until the taxes are remitted to the appropriate taxing authorities. Advertising and Marketing Costs Advertising and marketing costs are expensed as incurred. Advertising and marketing expense for 2015, 2014 and 2013 was $744,000, $461,000 and $382,000, respectively, and is included in restaurant operating expenses in the accompanying consolidated statements of comprehensive income (loss). We maintain a customer loyalty club (the Konavore™ program), an email-based marketing program designed to communicate new menu offerings, restaurant specific events, and other marketing messages to keep Kona Grill top of mind for consumers. The Konavore™ loyalty program offers members a discount coupon upon enrolling in the program and a discount coupon for a member’s birthday. These coupons are recognized upon redemption and recorded in the financial statements as a sales discount. Costs associated with the redemption of a promotion in the form of a coupon for discounted product are recorded in cost of sales as these coupons are typically redeemed with the purchase of additional food and beverage items. Costs associated with promotional giveaways of food and beverages to local businesses and sponsorship of events are viewed as advertising in nature and recorded in restaurant operating expenses. Preopening Expense Costs directly related to the opening of new restaurants, including employee relocation, travel, employee payroll and related training costs, and rent expense subsequent to the date we take possession of the property through the restaurant opening are expensed as incurred. Stock-Based Compensation We maintain stock award plans under which we may issue incentive stock options, non-qualified stock options, restricted stock, and other types of awards to employees, directors, and consultants. Stock options issued under these plans are granted with an exercise price at or above the fair market value of the underlying common stock on the date of grant and expire five years from the date of grant. Employee stock options generally vest 25% each year over a four-year period, while annual recurring awards for non-employee director options vest 25% each quarter over a one-year period. Certain stock option awards for executive officers may vest earlier in the event of a change of control or termination, as defined in the executive officer’s employment agreement. We apply the Black-Scholes valuation model in determining the fair value of stock option grants. We recognize compensation cost for our stock awards using a graded vesting schedule on a straight line basis over the requisite service period. Income Taxes We utilize the liability method of accounting for income taxes. Under the liability method, deferred tax assets and liabilities are computed at each balance sheet date for temporary differences between the consolidated financial statements and tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on tax rates in effect in the years in which the temporary differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that will more likely than not be realized. We recognize the impact of a tax position in our financial statements if that position more likely than not will be sustained upon examination by a tax authority. We recognize accrued interest and penalties related to uncertain tax positions as income tax expense. Net Income (Loss) Per Share Basic income (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted income (loss) per share is computed similarly except that weighted average common shares is increased to reflect all dilutive instruments, including stock options and warrants. The dilutive effects of the dilutive securities are calculated using the treasury stock method and only those instruments that result in a reduction in income per share are included in the calculation. For 2015, 2014 and 2013, there were 608,000, 197,000 and 76,000 stock options outstanding, respectively, that were not included in the dilutive earnings per share calculation because the effect would have been anti-dilutive. The following table sets forth the computation of basic and diluted net income (loss) per share: Year Ended December 31, 201 5 201 4 201 3 (In thousands, except per share data) Numerator: Net income (loss) $ (4,496 ) $ 703 $ 2,712 Denominator: Weighted average shares — basic 11,264 9,870 8,573 Effect of dilutive stock options — 393 189 Weighted average shares — diluted 11,264 10,263 8,762 Net income (loss) per share: Basic $ (0.40 ) $ 0.07 $ 0.32 Diluted $ (0.40 ) $ 0.07 $ 0.31 Recently Issued Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606). The pronouncement was issued to clarify the principles for recognizing revenue and is effective for reporting periods beginning after December 15, 2017. The expected adoption method of ASU 2014-09 is being evaluated by the Company. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This guidance requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying value of that debt liability. The recognition and measurement guidance for debt issuance costs are not affected by this new guidance. We do not expect the adoption of this guidance, effective for us in the first quarter of 2016, to have a material impact on our consolidated financial statements, although it will require retrospective application reducing the amount of debt reflected on our historical consolidated balance sheets. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330). The pronouncement was issued to simplify the measurement of inventory and changes the measurement from lower of cost or market to lower of cost and net realizable value. This pronouncement is effective for reporting periods beginning after December 15, 2016. The adoption of ASU 2015-11 is not expected to have a significant impact on the Company’s consolidated financial position or results of operations. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740) - Balance Sheet Classification of Deferred Taxes, which simplifies the presentation of deferred income taxes. This guidance requires that deferred tax assets and liabilities be classified as noncurrent in the balance sheet. The standard is effective for fiscal years beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted for financial statements that have not been previously issued. We have elected early adoption of this standard on a prospective basis in the fourth quarter of 2015. The adoption of this guidance had no impact on our consolidated financial position or results of operations. In February 2016, a new accounting standard, ASC Topic 842, “Leases,” was issued to increase the transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. In order to meet that objective, the new standard requires recognition of the assets and liabilities that arise from leases. Accordingly, a lessee will recognize a right-of-use (ROU) asset for its right to use the underlying asset and a lease liability for the corresponding lease obligation. Both the ROU asset and lease liability will initially be measured at the present value of the future minimum lease payments over the lease term. Subsequent measurement, including the presentation of expenses and cash flows, will depend on the classification of the lease as either a finance or an operating lease. Initial costs directly attributable to negotiating and arranging the lease will be included in the ROU asset. Lessees can make an accounting policy election by class of underlying asset not to recognize a ROU asset and corresponding lease liability for leases with a term of 12 months or less. Accounting by lessors will remain largely unchanged from current U.S. GAAP. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The modified retrospective approach includes a number of optional practical expedients that companies may elect to apply. These practical expedients relate to the identification and classification of leases that commenced before the effective date, initial direct costs for leases that commenced before the effective date, and the ability to use hindsight in evaluating lessee options to extend or terminate a lease or to purchase the underlying asset. The transition guidance also provides specific guidance for sale and leaseback transactions, build-to-suit leases, leveraged leases, and amounts previously recognized in accordance with the business combinations guidance for leases. The new standard is effective for public companies for fiscal years beginning after December 15, 2018, and interim periods within those years, with early adoption permitted. We are currently evaluating the effect that adopting this standard will have on our financial statements and related disclosures.

Note 2 - Fair Value Measurement

Note 2 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Fair Value Disclosures [Text Block]	2 . Fair Value Measurements The carrying value for certain of our financial instruments, including cash and cash equivalents, accounts receivable and accounts payable approximates fair value because of their short-term nature. Our investments represent certificates of deposit and are considered available-for-sale securities that are valued using market observable inputs (Level 2). Our long-term debt, when incurred, is valued using primarily Level 2 inputs including current applicable rates for similar instruments and approximates the carrying value of such obligations.

Note 3 - Property and Equipment

Note 3 - Property and Equipment	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	3 . Property and Equipment Property and equipment consisted of the following (in thousands): December 31, 2015 2014 Leasehold improvements $ 96,473 $ 69,643 Equipment 25,825 19,378 Furniture and fixtures 11,126 6,950 133,424 95,971 Less accumulated depreciation and amortization (54,027 ) (46,860 ) 79,397 49,111 Construction in progress 7,855 4,823 Total property and equipment, net $ 87,252 $ 53,934 We capitalize direct internal payroll and travel costs on the construction of leasehold improvements incurred during the construction and development period. Capitalized costs were $774,000 and $255,000 in 2015 and 2014, respectively.

Note 4 - Accrued Expenses

Note 4 - Accrued Expenses	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	4 . Accrued Expenses Accrued expenses consisted of the following (in thousands): December 31, 2015 2014 Accrued payroll and benefits $ 3,786 $ 3,280 Accrued construction and remodel (1) 5,017 1,067 Gift cards 2,309 1,961 Sales taxes 1,678 1,354 Accrued occupancy 296 399 Business and income taxes 321 92 Other 875 889 Total accrued expenses $ 14,282 $ 9,042 (1)

Note 5 - Debt and Credit Agreem

Note 5 - Debt and Credit Agreements	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Debt Disclosure [Text Block]	5 . Debt and Credit Agreements On April 19, 2013, we entered into a Credit Agreement for a $20 million revolving line of credit maturing on April 19, 2017 with KeyBank National Association (“KeyBank”) and Stearns Bank National Association (“Stearns Bank”). On November 7, 2014, we entered into an Amended and Restated Credit Agreement (the “Amended Credit Agreement”) with KeyBank to (i) increase the credit facility from $20 million to $35 million, and (ii) extend the maturity date of the credit facility to November 7, 2019. The credit facility is secured by our personal property and assets. Certain of our wholly owned subsidiaries have also guaranteed the credit facility. The entire $35 million under the credit facility was available at December 31, 2015. The interest rate under the Amended Credit Agreement is KeyBank’s prime rate or LIBOR, at our option, plus an applicable margin depending on our leverage ratio. The LIBOR margins range from 1.5% to 2.5% and the base rate margins range from 0.5% to 1.5%. Payments on the credit facility are interest only, payable quarterly with respect to each base rate loan and at varying times with respect to LIBOR rate loans, with outstanding principal and interest due at maturity. Prepayment is permitted at any time without penalty, subject to certain restrictions on the order of repayment or prepayment. We are obligated to pay a commitment fee at an annual rate of 0.175% to 0.350%, depending on our leverage ratio, times the unused total revolving commitment of the credit facility based on the average daily amount outstanding under the credit facility for the previous quarter. The commitment fee is payable quarterly in arrears. We incurred gross interest expense of $184,000, $269,000 and $171,000, respectively, in 2015, 2014 and 2013, consisting primarily of loan fee amortization of $81,000, $104,000 and $79,000 respectively, and commitment fees of $93,000, $91,000 and $70,000, respectively. Unamortized loan fees of $322,000 at December 31, 2015 are being amortized over the life of the credit facility and are included in other assets in the consolidated balance sheet. We also capitalized interest cost of $29,000 and $7,000 in 2014 and 2013, respectively. The credit facility also requires us to comply with certain covenants, including (a) a fixed charge coverage ratio of not less than 1.50 and (b) a maximum leverage ratio of 5.0 to 1.0 through March 31, 2016 and 4.75 to 1.0 from April 1, 2016 through the maturity date. We were in compliance with all covenants at December 31, 2015. Prior to the Credit Agreement, we had loan agreements with Stearns Bank for a $0.5 million term loan and a $6.5 million credit line. We did not have any borrowings under the Stearns Bank credit line prior to its termination in April 2013. We utilized existing cash to pay off the outstanding balance on the Stearns Bank term loan and wrote off $66,000 in deferred loan fees related to the prior loan agreements during the second quarter of 2013. In conjunction with the Amended Credit Agreement in November 2014, we wrote off the remaining Stearns Bank deferred loan fees of $39,000 in the fourth quarter of 2014.

Note 6 - Income Taxes

Note 6 - Income Taxes	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Income Tax Disclosure [Text Block]	6 . Income Taxes Income tax expense (benefit) consisted of the following (in thousands): Year Ended December 31, 2015 2014 2013 Current: Federal $ — $ — $ 71 State 43 — 98 43 — 169 Deferred: Federal — — — State — — — — — — Total $ 43 $ — $ 169 Income tax expense (benefit) differed from amounts computed by applying the federal statutory rate to income (loss) from operations before provision for income taxes as follows (in thousands): Year Ended December 31, 2015 2014 2013 Income tax expense (benefit) at federal statutory rate of 35% $ (1,514 ) $ 239 $ 979 State income taxes, net of federal benefit 46 41 91 Nondeductible expenses 583 484 394 Business tax credit (1,503 ) (1,959 ) (1,057 ) Other (273 ) (32 ) (78 ) Change in valuation allowance 2,704 1,227 (160 ) Total $ 43 $ — $ 169 The temporary differences that give rise to significant portions of deferred tax assets and liabilities were as follows (in thousands): December 31, 2015 2014 Deferred tax assets (liabilities): Net operating loss carryforward $ 8,027 $ 3,114 Deferred rent 7,585 6,258 Business tax credits 10,917 9,414 Organizational and preopening costs 238 39 Stock-based compensation 797 371 Accrued expenses 79 58 Property and equipment (7,699 ) (1,879 ) Other 610 475 Net deferred tax assets 20,554 17,850 Valuation allowance (20,554 ) (17,850 ) Total $ — $ — The valuation allowance increased $2.7 million and $1.2 million at December 31, 2015 and 2014. At December 31, 2015, we had $28.8 million in federal net operating loss carryforwards that will begin expiring in 2034, $41.2 million in state net operating loss carryforwards, that began expiring in 2015, and $10.9 million in federal business tax credit carryforwards, the majority of which is comprised of FICA tip credit carryforwards that will begin expiring in 2022. These credits and net operating loss carryforwards are also subject to annual limitations due to ownership change rules under the Internal Revenue Code. The realization of our deferred tax assets ultimately depends on the existence of sufficient taxable income in future periods. We have analyzed, and will continue to analyze, the positive and negative evidence to support our conclusion regarding the appropriate amount of our valuation allowance. This analysis incorporates our recent earnings history and forecasted future results. We are currently in a three-year cumulative loss which points to a full valuation allowance for our net deferred tax assets due to the uncertainty surrounding their future utilization. The valuation allowance could be reduced in a subsequent period if there is sufficient evidence to support a conclusion that it is more likely than not that our deferred tax assets will be realized. Future changes in our valuation allowance could have a material effect on our results of operations in the period recorded. Accruals for unrecognized tax benefits are included within our deferred tax assets which are offset by a valuation allowance. These accruals relate to various tax matters that result from uncertainties in the application of certain income tax regulations. As of December 31, 2015, the unrecognized tax benefit was $1.7 million. There was no unrecognized tax benefit for the years ended December 31, 2014 and 2013. We believe it is reasonably possible that the full amount or some portion of the unrecognized tax benefit could decrease within the next 12 months. If recognized, none of the tax benefit would impact the effective tax rate due to the Company’s full valuation allowance. As of December 31, 2015, there was no accrued interest or penalties recorded in the consolidated financial statements. We are subject to U.S. federal income tax as well as income tax of multiple state jurisdictions. The earliest tax year still subject to examination by a significant taxing jurisdiction is 2011.

Note 7 - Stockholders' Equity

Note 7 - Stockholders' Equity	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	7 . Stockholders’ Equity Preferred Stock We are authorized to issue 2,000,000 shares of preferred stock with a par value of $0.01. There were no shares of preferred stock that were issued or outstanding at December 31, 2015 or 2014. Common Stock On April 30, 2015, our shareholders approved an amendment to our certificate of incorporation to increase the number of authorized shares of common stock from 15 million to 30 million. Stock Purchase and Retirement Program In May 2012, our Board of Directors authorized a stock repurchase and retirement program of up to $5.0 million of our outstanding common stock. We repurchased and retired $3.2 million or 387,109 shares under the 2012 authorization, with $203,000 or 24,098 shares purchased during 2013. We did not repurchase and retire any shares during 2014. In November 2015, our Board of Directors authorized another repurchase program of up to $10.0 million of our outstanding common stock. The current authorization replaces the 2012 repurchase plan under which $1.8 million remained available for repurchase. As of December 31, 2015, we have repurchased and retired $227,000 or 18,194 shares under the 2015 authorization. The authorization of the program does not have an expiration date and it does not require us to purchase a specific dollar amount of shares. This authorization may be modified, suspended or terminated at any time. The timing and number of shares purchased pursuant to the share purchase authorization are subject to a number of factors, including current market conditions, legal constraints and available cash. If we do not continue to repurchase shares of our common stock, this could have an adverse effect on the market price of our common stock. Common Stock Offering On June 25, 2014, we completed a public offering of 2,645,000 shares of our common stock at an offering price of $18.50 per share. We sold an aggregate of 2,345,000 shares, of which 345,000 shares were sold pursuant to the underwriters’ exercise of their option to purchase additional shares. The remaining 300,000 shares were sold by certain selling stockholders. The aggregate net proceeds received for the offering totaled $40.9 million, reflecting gross proceeds of $43.4 million, less underwriting discounts and expenses of $2.2 million and other offering costs of $0.3 million. Net proceeds from the offering are being used for new unit expansion, capital expenditures and general corporate purposes.

Note 8 - Stock-Based Compensati

Note 8 - Stock-Based Compensation	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	8 . Stock-Based Compensation Stock Options We maintain stock award plans under which we may issue incentive stock options, non-qualified stock options, restricted stock, and other types of awards to employees, directors, and consultants. We typically grant non-qualified stock options with an exercise price at the fair market value of the underlying common stock on the date of grant and such options expire five years from the date of grant. Employee stock options generally vest 25% each year over a four-year period, while annual recurring awards for non-employee director options vest 25% each quarter over a one-year period. We previously granted stock options under our 2012 Stock Award Plan (the “2012 Plan”). In April 2015, our shareholders approved an increase of 1.5 million common shares reserved for issuance under the 2012 Plan. The total shares of common stock reserved for issuance were 3.7 million, of which 1.6 million shares were available for grant as of December 31, 2015. We account for stock-based compensation using the fair value recognition provisions. Compensation expense is recognized ratably over the vesting term of the option and is included in general and administrative expenses. The following table presents information related to stock-based compensation (in thousands): Year Ended December 31, 2015 2014 2013 Stock-based compensation $ 1,363 $ 856 $ 584 The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model and is affected by assumptions regarding a number of highly complex and subjective variables. These variables include, but are not limited to, the actual and projected employee stock option exercise behavior, expected volatility, risk-free interest rate, expected dividends, and expected term. Expected volatility is based on the historical volatility of our stock. The expected term of the options represents the estimated period of time until exercise and is based on historical experience of similar awards, giving consideration to the contractual terms, vesting schedules and expectations of future employee behavior. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the expected term of the option. We have not paid dividends in the past and do not plan to pay any dividends in the near future. Compensation expense is recognized only for those options expected to vest, with forfeitures estimated based on our historical experience and future expectations. The fair value of stock options granted was estimated at the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions: 2015 2014 2013 Expected volatility 40.7 % 36.8 % 38.8 % Risk-free interest rate 0.9 % 0.7 % 0.6 % Dividend yield 0.0 % 0.0 % 0.0 % Expected life (in years) 3.0 2.9 3.4 Weighted average fair value per option granted $ 6.67 $ 4.15 $ 2.53 Activities under our stock award plans during 2015, 2014 and 2013 were as follows: Shares Under Option Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in thousands) Outstanding options at December 31, 2012 673,942 $ 6.09 Granted 276,800 8.87 Forfeited (90,104 ) 9.39 Exercised (77,341 ) 3.63 Outstanding options at December 31, 2013 783,297 6.94 Granted 309,900 16.24 Forfeited (26,650 ) 13.08 Exercised (326,297 ) 6.82 Outstanding options at December 31, 2014 740,250 10.66 Granted 380,268 23.28 Forfeited (81,213 ) 19.73 Exercised (77,837 ) 7.40 Outstanding options at December 31, 2015 961,468 $ 15.15 2.8 $ 3,248 Exercisable at December 31, 2015 381,650 $ 11.92 2.2 $ 1,971 The intrinsic value of options exercised during 2015, 2014 and 2013 was $1.2 million, $5.0 million and $0.5 million, respectively. The total fair value of shares vested during 2015, 2014 and 2013 was $1.0 million, $0.7 million and $0.5 million, respectively. As of December 31, 2015, there was approximately $2.0 million of unrecognized stock-based compensation expense related to unvested share-based compensation arrangements, which is expected to be recognized over a weighted average period of 2.7 years. Information regarding options outstanding and exercisable at December 31, 2015 is as follows: Options Outstanding Options Exercisable Range of Exercise Prices Shares Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Shares Weighted Average Exercise Price $4.99 – $8.71 378,025 1.5 $ 7.36 221,800 $ 7.05 $11.82 – $18.85 261,975 3.1 $ 16.15 102,100 $ 15.97 $23.49 321,468 4.1 $ 23.49 57,750 $ 23.49 961,468 2.8 $ 15.15 381,650 $ 11.92

Note 9 - Employee Benefit Plans

Note 9 - Employee Benefit Plans	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	9 . Employee Benefit Plans Defined Contribution Plan We maintain a voluntary defined contribution plan covering eligible employees as defined in the plan documents. Participating employees may elect to defer the receipt of a portion of their compensation, subject to applicable laws, and contribute such amount to one or more investment options. We currently match in cash a certain percentage of the employee contributions to the plan and also pay for related administrative expenses. Matching contributions made during 2015, 2014 and 2013 were $263,000, $216,000 and $219,000, respectively. Employee Stock Purchase Plan During 2005, our Board of Directors and stockholders approved the 2005 Employee Stock Purchase Plan (ESPP) and reserved 425,000 shares of common stock for issuance thereunder. The ESPP permits eligible employees to purchase common stock at a discount through payroll deductions up to 15% of employees’ eligible earnings during the offering period. The purchase price per share at which shares of common stock are sold in an offering under the ESPP is equal to 95% of the fair market value of common stock on the last day of the applicable offering period. During 2015, 2014 and 2013, 2,743 shares, 2,298 shares and 2,610 shares, respectively, were purchased under the ESPP.

Note 10 - Commitments and Conti

Note 10 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	10 . Commitments and Contingencies Leases We lease our restaurant locations under operating leases having terms expiring from 2016 to 2029. The leases typically include renewal clauses of five years exercisable at the option of our company and rent escalation clauses stipulating specific rent increases. We record deferred rent to recognize rent evenly over the lease term. Certain of these leases require the payment of contingent rentals based on a percentage of gross revenues above specified minimum amounts as defined in the respective lease agreement. The leases typically require us to pay our proportionate share of common area maintenance, property tax, insurance, and other occupancy-related costs. We also lease office facilities and certain equipment under operating lease agreements. Rent expense on all operating leases was as follows (in thousands): Year Ended December 31, 2015 2014 2013 Minimum base rent $ 9,618 $ 7,391 $ 6,160 Contingent rent 269 168 99 Total rent $ 9,887 $ 7,559 $ 6,259 As of December 31, 2015, future minimum lease payments under operating leases, including all signed leases for restaurants to be opened and excluding unexercised renewal options periods, were as follows (in thousands): 2016 $ 13,511 2017 13,809 2018 13,143 2019 12,957 2020 12,437 Thereafter 55,034 Total minimum lease payments $ 120,891 Litigation We are engaged in various legal actions, which arise in the ordinary course of our business. Although there can be no assurance as to the ultimate disposition of these matters, it is the opinion of our management, based upon the information available at this time, that the expected outcome of these matters, individually or in the aggregate, will not have a material adverse effect on the results of operations or financial condition of our company. On February 10, 2014, Kona Grill Macadamia, Inc., a wholly-owned subsidiary of the Company (“Macadamia”), filed a Motion to Set Aside Default Judgment in the Circuit Court of Jackson County, Kansas City Missouri relating to a default judgment of approximately $3.5 million entered on December 18, 2013 against Macadamia. The underlying personal injury claim, Frank Neal Goss v. Kona Macadamia, Inc. and Anthony DeAngelo, revolves around a fight that two alleged restaurant patrons had outside of the Company’s Kansas City restaurant on March 1, 2011, which is claimed to have resulted in physical injury to the plaintiff. Following the hearing held on April 3, 2014, the Circuit Court issued a written order on April 7, 2014 granting Macadamia’s Motion to Set Aside Default Judgment. The underlying personal injury case is proceeding in the Circuit Court. On August 17, 2015, Macadamia filed a Motion for Summary Judgment requesting judgment in its favor on all claims asserted by the plaintiff. On August 18, 2015, the plaintiff filed for a voluntary dismissal of the claim without prejudice. Under Missouri law, the plaintiff has up to one year to re-file the claim. We believe that we have a strong defense to the claim asserted by the plaintiff and insurance coverage should the plaintiff decide to re-file the claim.

Note 11 - Selected Quarterly Fi

Note 11 - Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2015
Notes to Financial Statements
Quarterly Financial Information [Text Block]	1 1 . Selected Quarterly Financial Data (Unaudited) Summarized quarterly unaudited financial data for 2015 and 2014 is as follows (in thousands, except per share data): 2015 March 31 June 30 September 30 December 31 Restaurant sales $ 32,807 $ 36,225 $ 35,925 $ 38,066 Income (loss) from operations (892 ) (28 ) (1,401 ) (1,953 ) Net income (loss) (925 ) (93 ) (1,468 ) (2,011 ) Diluted net income (loss) per share (1) $ (0.08 ) $ (0.01 ) $ (0.13 ) $ (0.18 ) 2014 March 31 June 30 September 30 December 31 Restaurant sales $ 27,616 $ 29,886 $ 30,037 $ 31,558 Income (loss) from operations 336 1,083 384 (841 ) Net income (loss) 251 1,019 349 (916 ) Diluted net income (loss) per share (1) $ 0.03 $ 0.11 $ 0.03 $ (0.08 ) (1) Net income (loss) per share calculations for each quarter are based on the weighted average diluted shares outstanding for that quarter and may not total to the full year amount.

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The consolidated financial statements include the accounts and operations of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Reclassification, Policy [Policy Text Block]	Reclassifications Certain reclassifications of prior year’s financial statement amounts have been made to conform to the current year presentation.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents We consider all highly liquid investments that are readily convertible into cash and have an original maturity of three months or less at the time of purchase to be cash equivalents. Amounts receivable from credit card processors are also considered cash equivalents because they are both short-term and highly liquid in nature and are typically converted to cash within several business days of the sales transaction.
Investment, Policy [Policy Text Block]	Investments Investments consist primarily of certificates of deposit that are generally highly liquid in nature. We classify our investments based on the intended holding period.
Inventory, Policy [Policy Text Block]	Inventory Inventory consists of food and beverage products that are valued at the lower of cost or market using the first-in, first-out method. Inventory is included in other current assets in the accompanying consolidated balance sheets.
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, a three-tier value hierarchy was established, which prioritizes the inputs used in the valuation methodologies in measuring fair value. Level 1: Fair values determined by quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access. Level 2: Fair values utilize inputs other than quoted prices that are observable for the asset or liability, and may include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability. Level 3: Fair values determined by unobservable inputs that are not corroborated by market data and may reflect the reporting entity’s own assumptions market participants would use in pricing the asset or liability.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of Credit Risk Financial instruments that potentially subject us to a concentration of credit risk principally consist of cash and cash equivalents, investments and accounts receivable. Concentration of credit risk is limited by diversifying cash deposits among a variety of high credit-quality issuers. At times, cash and cash equivalent balances may be in excess of the FDIC insurance limit.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment are stated at cost less accumulated depreciation. We capitalize all direct costs on the construction of leasehold improvements and interest incurred during the construction and development period. Leasehold improvements are amortized over the shorter of the useful life of the asset or the related lease term that includes reasonably assured lease renewals as determined on the date of acquisition of the leasehold improvement. Improvements that materially extend the life of an asset are capitalized while repair and maintenance costs are expensed as incurred. Depreciation and amortization are recorded on a straight-line basis over the following estimated useful lives: Furniture and fixtures (years) 5 - 7 Equipment 2 - 7 Computer software and electronic equipment 3 Leasehold improvements Shorter of the useful life or the lease term We evaluate property and equipment for impairment whenever events or changes in restaurant operating results indicate that the carrying value of those assets may not be recoverable. Factors considered include, but are not limited to, significant underperformance relative to expected historical or projected future operating results; significant negative industry or economic trends; and significant changes in legal factors or in the business climate. The assessment of impairment is performed on a restaurant-by-restaurant basis. Recoverability is assessed by comparing the carrying value of the asset to the undiscounted cash flows expected to be generated by the asset. This assessment process requires the use of estimates and assumptions regarding future cash flows and estimated useful lives, which are subject to a significant degree of judgment. If indicators of impairment are present and if we determine that the carrying value of the asset exceeds the fair value of the restaurant assets, an impairment charge is recorded to reduce the carrying value of the asset to its fair value.
Lease, Policy [Policy Text Block]	Leases We lease our restaurant locations under operating lease agreements with initial terms of approximately 10 to 20 years. Most of these agreements require minimum annual rent payments plus contingent rent payments based on a percentage of restaurant sales which exceed the minimum base sales threshold. Contingent rent payments, to the extent they exceed minimum payments, are accrued over the periods in which the liability is incurred. Rent expense associated with these contingent payments is recorded prior to the achievement of specified sales levels if exceeding such amount is considered probable and is estimable. The lease agreements typically also require scheduled increases to minimum annual rent payments. For leases that contain rent escalations, we record the total rent payable over the initial lease term, starting on the date we gain possession of the property (including the construction period), on a straight-line basis. Any difference between minimum rent and straight-line rent is recorded as deferred rent. Deferred rent also includes tenant improvement allowances which are amortized as a reduction of rent expense on a straight-line basis over the term of the lease. As part of the initial lease terms, we negotiate with our landlords to secure these tenant improvement allowances and record such allowances as lease incentive receivables when determined to be collectible. These amounts are included in receivables on the balance sheet.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition Revenues from food, beverage, and alcohol sales are recognized when payment is tendered at the point of sale. Restaurant sales are recorded net of promotions and discounts. Revenues from gift card sales are recognized upon redemption. Prior to redemption, the outstanding balances of all gift cards are included in accrued expenses in the accompanying consolidated balance sheets.
Sales Tax Policy [Policy Text Block]	Sales Taxes Revenues are presented net of sales taxes. The sales tax obligation is included in accrued expenses until the taxes are remitted to the appropriate taxing authorities.
Advertising Costs, Policy [Policy Text Block]	Advertising and Marketing Costs Advertising and marketing costs are expensed as incurred. Advertising and marketing expense for 2015, 2014 and 2013 was $744,000, $461,000 and $382,000, respectively, and is included in restaurant operating expenses in the accompanying consolidated statements of comprehensive income (loss). We maintain a customer loyalty club (the Konavore™ program), an email-based marketing program designed to communicate new menu offerings, restaurant specific events, and other marketing messages to keep Kona Grill top of mind for consumers. The Konavore™ loyalty program offers members a discount coupon upon enrolling in the program and a discount coupon for a member’s birthday. These coupons are recognized upon redemption and recorded in the financial statements as a sales discount. Costs associated with the redemption of a promotion in the form of a coupon for discounted product are recorded in cost of sales as these coupons are typically redeemed with the purchase of additional food and beverage items. Costs associated with promotional giveaways of food and beverages to local businesses and sponsorship of events are viewed as advertising in nature and recorded in restaurant operating expenses.
Preopening Expense Policy [Policy Text Block]	Preopening Expense Costs directly related to the opening of new restaurants, including employee relocation, travel, employee payroll and related training costs, and rent expense subsequent to the date we take possession of the property through the restaurant opening are expensed as incurred.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock-Based Compensation We maintain stock award plans under which we may issue incentive stock options, non-qualified stock options, restricted stock, and other types of awards to employees, directors, and consultants. Stock options issued under these plans are granted with an exercise price at or above the fair market value of the underlying common stock on the date of grant and expire five years from the date of grant. Employee stock options generally vest 25% each year over a four-year period, while annual recurring awards for non-employee director options vest 25% each quarter over a one-year period. Certain stock option awards for executive officers may vest earlier in the event of a change of control or termination, as defined in the executive officer’s employment agreement. We apply the Black-Scholes valuation model in determining the fair value of stock option grants. We recognize compensation cost for our stock awards using a graded vesting schedule on a straight line basis over the requisite service period.
Income Tax, Policy [Policy Text Block]	Income Taxes We utilize the liability method of accounting for income taxes. Under the liability method, deferred tax assets and liabilities are computed at each balance sheet date for temporary differences between the consolidated financial statements and tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on tax rates in effect in the years in which the temporary differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that will more likely than not be realized. We recognize the impact of a tax position in our financial statements if that position more likely than not will be sustained upon examination by a tax authority. We recognize accrued interest and penalties related to uncertain tax positions as income tax expense.
Earnings Per Share, Policy [Policy Text Block]	Net Income (Loss) Per Share Basic income (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted income (loss) per share is computed similarly except that weighted average common shares is increased to reflect all dilutive instruments, including stock options and warrants. The dilutive effects of the dilutive securities are calculated using the treasury stock method and only those instruments that result in a reduction in income per share are included in the calculation. For 2015, 2014 and 2013, there were 302,000, 197,000 and 76,000 stock options outstanding, respectively, that were not included in the dilutive earnings per share calculation because the effect would have been anti-dilutive. The following table sets forth the computation of basic and diluted net income (loss) per share: Year Ended December 31, 201 5 201 4 201 3 (In thousands, except per share data) Numerator: Net income (loss) $ (4,496 ) $ 703 $ 2,712 Denominator: Weighted average shares — basic 11,264 9,870 8,573 Effect of dilutive stock options — 393 189 Weighted average shares — diluted 11,264 10,263 8,762 Net income (loss) per share: Basic $ (0.40 ) $ 0.07 $ 0.32 Diluted $ (0.40 ) $ 0.07 $ 0.31
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606). The pronouncement was issued to clarify the principles for recognizing revenue and is effective for reporting periods beginning after December 15, 2017. The expected adoption method of ASU 2014-09 is being evaluated by the Company. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. This guidance requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying value of that debt liability. The recognition and measurement guidance for debt issuance costs are not affected by this new guidance. We do not expect the adoption of this guidance, effective for us in the first quarter of 2016, to have a material impact on our consolidated financial statements, although it will require retrospective application reducing the amount of debt reflected on our historical consolidated balance sheets. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330). The pronouncement was issued to simplify the measurement of inventory and changes the measurement from lower of cost or market to lower of cost and net realizable value. This pronouncement is effective for reporting periods beginning after December 15, 2016. The adoption of ASU 2015-11 is not expected to have a significant impact on the Company’s consolidated financial position or results of operations. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740) - Balance Sheet Classification of Deferred Taxes, which simplifies the presentation of deferred income taxes. This guidance requires that deferred tax assets and liabilities be classified as noncurrent in the balance sheet. The standard is effective for fiscal years beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted for financial statements that have not been previously issued. We have elected early adoption of this standard on a prospective basis in the fourth quarter of 2015. The adoption of this guidance had no impact on our consolidated financial position or results of operations. On February 25, 2016, the FASB issued ASU 2016-X, Leases (Subtopic xxx-xx). This guidance requires the recognition of assets and liabilities that arise from lease transactions. In other words, current off-balance sheet leasing activities will be required to be reflected on balance sheets. The FASB lessee accounting model retains two types of leases, and is consistent with the lessee accounting model under existing GAAP. One type of lease (finance leases) will be accounted for in substantially the same manner as capital leases are accounted for under existing GAAP. The other type of lease (operating leases) will be accounted for (both in the income statement and statement of cash flows) in a manner consistent with operating leases under existing GAAP. However, as it relates to the balance sheet, lessees will recognize lease liabilities based upon the present value of remaining lease payments and corresponding lease assets for operating leases with limited exception. The new standard also will require lessees and lessors to provide additional qualitative and quantitative disclosures regarding the amount, timing, and uncertainty of cash flows arising from leases. These disclosures are intended to supplement the amounts recorded in the financial statements and provide supplemental information about the nature of an organization’s leasing activities. The expected adoption method of ASU 2016-xx is being evaluated by the Company and the adoption is expected to have a significant impact on the Company’s consolidated financial position and results of operations.

Note 1 - The Company and Summ19

Note 1 - The Company and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Property Plant and Equipment, Estimated Useful Lives [Table Text Block]	Furniture and fixtures (years) 5 - 7 Equipment 2 - 7 Computer software and electronic equipment 3 Leasehold improvements Shorter of the useful life or the lease term
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year Ended December 31, 201 5 201 4 201 3 (In thousands, except per share data) Numerator: Net income (loss) $ (4,496 ) $ 703 $ 2,712 Denominator: Weighted average shares — basic 11,264 9,870 8,573 Effect of dilutive stock options — 393 189 Weighted average shares — diluted 11,264 10,263 8,762 Net income (loss) per share: Basic $ (0.40 ) $ 0.07 $ 0.32 Diluted $ (0.40 ) $ 0.07 $ 0.31

Note 3 - Property and Equipme20

Note 3 - Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2015 2014 Leasehold improvements $ 96,473 $ 69,643 Equipment 25,825 19,378 Furniture and fixtures 11,126 6,950 133,424 95,971 Less accumulated depreciation and amortization (54,027 ) (46,860 ) 79,397 49,111 Construction in progress 7,855 4,823 Total property and equipment, net $ 87,252 $ 53,934

Note 4 - Accrued Expenses (Tabl

Note 4 - Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	December 31, 2015 2014 Accrued payroll and benefits $ 3,786 $ 3,280 Accrued construction and remodel (1) 5,017 1,067 Gift cards 2,309 1,961 Sales taxes 1,678 1,354 Accrued occupancy 296 399 Business and income taxes 321 92 Other 875 889 Total accrued expenses $ 14,282 $ 9,042

Note 6 - Income Taxes (Tables)

Note 6 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 2015 2014 2013 Current: Federal $ — $ — $ 71 State 43 — 98 43 — 169 Deferred: Federal — — — State — — — — — — Total $ 43 $ — $ 169
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 2015 2014 2013 Income tax expense (benefit) at federal statutory rate of 35% $ (1,514 ) $ 239 $ 979 State income taxes, net of federal benefit 46 41 91 Nondeductible expenses 583 484 394 Business tax credit (1,503 ) (1,959 ) (1,057 ) Other (273 ) (32 ) (78 ) Change in valuation allowance 2,704 1,227 (160 ) Total $ 43 $ — $ 169
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31, 2015 2014 Deferred tax assets (liabilities): Net operating loss carryforward $ 8,027 $ 3,114 Deferred rent 7,585 6,258 Business tax credits 10,917 9,414 Organizational and preopening costs 238 39 Stock-based compensation 797 371 Accrued expenses 79 58 Property and equipment (7,699 ) (1,879 ) Other 610 475 Net deferred tax assets 20,554 17,850 Valuation allowance (20,554 ) (17,850 ) Total $ — $ —

Note 8 - Stock-Based Compensa23

Note 8 - Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Year Ended December 31, 2015 2014 2013 Stock-based compensation $ 1,363 $ 856 $ 584
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2015 2014 2013 Expected volatility 40.7 % 36.8 % 38.8 % Risk-free interest rate 0.9 % 0.7 % 0.6 % Dividend yield 0.0 % 0.0 % 0.0 % Expected life (in years) 3.0 2.9 3.4 Weighted average fair value per option granted $ 6.67 $ 4.15 $ 2.53
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Shares Under Option Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in thousands) Outstanding options at December 31, 2012 673,942 $ 6.09 Granted 276,800 8.87 Forfeited (90,104 ) 9.39 Exercised (77,341 ) 3.63 Outstanding options at December 31, 2013 783,297 6.94 Granted 309,900 16.24 Forfeited (26,650 ) 13.08 Exercised (326,297 ) 6.82 Outstanding options at December 31, 2014 740,250 10.66 Granted 380,268 23.28 Forfeited (81,213 ) 19.73 Exercised (77,837 ) 7.40 Outstanding options at December 31, 2015 961,468 $ 15.15 2.8 $ 3,248 Exercisable at December 31, 2015 381,650 $ 11.92 2.2 $ 1,971
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Options Outstanding Options Exercisable Range of Exercise Prices Shares Weighted Average Remaining Contractual Life (years) Weighted Average Exercise Price Shares Weighted Average Exercise Price $4.99 – $8.71 378,025 1.5 $ 7.36 221,800 $ 7.05 $11.82 – $18.85 261,975 3.1 $ 16.15 102,100 $ 15.97 $23.49 321,468 4.1 $ 23.49 57,750 $ 23.49 961,468 2.8 $ 15.15 381,650 $ 11.92

Note 10 - Commitments and Con24

Note 10 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Rent Expense [Table Text Block]	Year Ended December 31, 2015 2014 2013 Minimum base rent $ 9,618 $ 7,391 $ 6,160 Contingent rent 269 168 99 Total rent $ 9,887 $ 7,559 $ 6,259
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	2016 $ 13,511 2017 13,809 2018 13,143 2019 12,957 2020 12,437 Thereafter 55,034 Total minimum lease payments $ 120,891

Note 11 - Selected Quarterly 25

Note 11 - Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2015
Notes Tables
Schedule of Quarterly Financial Information [Table Text Block]	2015 March 31 June 30 September 30 December 31 Restaurant sales $ 32,807 $ 36,225 $ 35,925 $ 38,066 Income (loss) from operations (892 ) (28 ) (1,401 ) (1,953 ) Net income (loss) (925 ) (93 ) (1,468 ) (2,011 ) Diluted net income (loss) per share (1) $ (0.08 ) $ (0.01 ) $ (0.13 ) $ (0.18 ) 2014 March 31 June 30 September 30 December 31 Restaurant sales $ 27,616 $ 29,886 $ 30,037 $ 31,558 Income (loss) from operations 336 1,083 384 (841 ) Net income (loss) 251 1,019 349 (916 ) Diluted net income (loss) per share (1) $ 0.03 $ 0.11 $ 0.03 $ (0.08 )

Note 1 - The Company and Summ26

Note 1 - The Company and Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2015USD ($)shares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)shares
Restaurant Location [Member] | Minimum [Member]
Operating Lease Original Term	10 years
Restaurant Location [Member] | Maximum [Member]
Operating Lease Original Term	20 years
Employee Stock Option [Member] | Employee Member
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Employee Stock Option [Member] | Non Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Number of Restaurants	37
Number of States in which Entity Operates	19
Number of Reportable Segments	1
Investments Original Maturity	3 years
Marketing and Advertising Expense | $	$ 744,000	$ 461,000	$ 382,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	5 years
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	608,000	197,000	76,000

Note 1 - Property and Equipment

Note 1 - Property and Equipment - Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2015
Furniture and Fixtures [Member] | Minimum [Member]
Property and Equipment	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and Equipment	7 years
Equipment [Member] | Minimum [Member]
Property and Equipment	2 years
Equipment [Member] | Maximum [Member]
Property and Equipment	7 years
Computer Software And Electronic Equipment [Member]
Property and Equipment	3 years

Note 1 - Basic and Diluted Net

Note 1 - Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income (loss)	$ (4,496)	$ 703	$ 2,712
Denominator:
Weighted average shares — basic (in shares)	11,264	9,870	8,573
Effect of dilutive stock options (in shares)		393	189
Weighted average shares — diluted (in shares)	11,264	10,263	8,762
Net income (loss) per share:
Basic (in dollars per share)	$ (0.40)	$ 0.07	$ 0.32
Diluted net income (loss) per share (1) (in dollars per share)	$ (0.40)	$ 0.07	$ 0.31

Note 3 - Property and Equipme29

Note 3 - Property and Equipment (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Internal Payroll Travel Costs Capitalized	$ 774,000	$ 255,000

Note 3 - Summary of Property an

Note 3 - Summary of Property and Equipment (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Leasehold Improvements [Member]
Property, plant and equipment gross	$ 96,473,000	$ 69,643,000
Equipment [Member]
Property, plant and equipment gross	25,825,000	19,378,000
Furniture and Fixtures [Member]
Property, plant and equipment gross	11,126,000	6,950,000
Excluding Construction In Progress [Member]
Property, plant and equipment, net	79,397,000	49,111,000
Construction in Progress [Member]
Property, plant and equipment gross	7,855,000	4,823,000
Property, plant and equipment gross	133,424,000	95,971,000
Less accumulated depreciation and amortization	(54,027,000)	(46,860,000)
Property, plant and equipment, net	$ 87,252,000	$ 53,934,000

Note 4 - Accrued Expenses - Acc

Note 4 - Accrued Expenses - Accrued Expenses (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Accrued payroll and benefits	$ 3,786,000	$ 3,280,000
Accrued construction and remodel (1)	5,017,000	1,067,000
Gift cards	2,309,000	1,961,000
Sales taxes	1,678,000	1,354,000
Accrued occupancy	296,000	399,000
Business and income taxes	321,000	92,000
Other	875,000	889,000
Total accrued expenses	$ 14,282,000	$ 9,042,000

Note 5 - Debt and Credit Agre32

Note 5 - Debt and Credit Agreements (Details Textual)	Nov. 07, 2014USD ($)	Apr. 19, 2013USD ($)	Dec. 31, 2014USD ($)	Jun. 30, 2013USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2012USD ($)
Key Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Expiration Date	Nov. 7, 2019	Apr. 19, 2017
Line of Credit Facility, Maximum Borrowing Capacity	$ 35,000,000	$ 20,000,000			$ 35,000,000
Stearns Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 6,500,000
Stearns Bank [Member] | Term Loan [Member]
Debt Instrument, Face Amount								$ 500,000
Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate					1.50%
Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					0.50%
Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.175%
Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate					2.50%
Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					1.50%
Revolving Credit Facility [Member] | Maximum [Member] | Through March 31, 2016 [Member]
Maximum Leverage Ratio					5
Revolving Credit Facility [Member] | Maximum [Member] | From April 1, 2016 Through the Maturity Date [Member]
Maximum Leverage Ratio					4.75
Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.35%
Revolving Credit Facility [Member]
Line of Credit Facility, Commitment Fee Amount					$ 93,000	$ 91,000	$ 70,000
Fixed Charge Coverage Ratio Minimum					1.5
Interest Expense, Debt					$ 184,000	269,000	171,000
Amortization of Financing Costs					81,000	104,000	79,000
Unamortized Debt Issuance Expense					$ 322,000
Interest Costs Capitalized						29,000	7,000
Write off of Deferred Debt Issuance Cost			$ 39,000	$ 66,000		$ 39,000	$ 66,000

Note 6 - Income Taxes (Details

Note 6 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earliest Tax Year [Member]
Open Tax Year	2,012
Domestic Tax Authority [Member]
Operating Loss Carryforwards	$ 28,800,000
Tax Credit Carryforward, Amount	10,900,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	41,200,000
Unrecognized Tax Benefits	1,700,000	$ 0	$ 0
Income Tax Examination, Penalties and Interest Accrued	0
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 2,700,000	$ 1,200,000

Note 6 - Income Tax Expense fro

Note 6 - Income Tax Expense from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal			$ 71
State	$ 43		98
	43		169
Deferred:
Total	$ 43		$ 169

Note 6 - Income Tax Expense Rec

Note 6 - Income Tax Expense Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income tax expense (benefit) at federal statutory rate of 35%	$ (1,514)	$ 239	$ 979
State income taxes, net of federal benefit	46	41	91
Nondeductible expenses	583	484	394
Business tax credit	(1,503)	(1,959)	(1,057)
Other	(273)	(32)	(78)
Change in valuation allowance	2,704	$ 1,227	(160)
Total	$ 43		$ 169

Note 6 - Income Tax Expense R36

Note 6 - Income Tax Expense Reconciliation (Details) (Parentheticals)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal statutory rate	35.00%	35.00%	35.00%

Note 6 - Deferred Tax Assets an

Note 6 - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets (liabilities):
Net operating loss carryforward	$ 8,027	$ 3,114
Deferred rent	7,585	6,258
Business tax credits	10,917	9,414
Organizational and preopening costs	238	39
Stock-based compensation	797	371
Accrued expenses	79	58
Property and equipment	(7,699)	(1,879)
Other	610	475
Net deferred tax assets	20,554	17,850
Valuation allowance	$ (20,554)	$ (17,850)
Total

Note 7 - Stockholders' Equity (

Note 7 - Stockholders' Equity (Details Textual) - USD ($)	Jun. 25, 2014	May. 30, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2015	Apr. 30, 2015	May. 31, 2012
Authorization for 2015 [Member]
Stock Repurchased and Retired During Period, Shares			18,194
Stock Repurchase Program, Authorized Amount						$ 10,000,000
Stock Repurchased and Retired During Period, Value			$ 227,000
Authorization for 2012 [Member]
Stock Repurchase Program, Remaining Authorized Repurchase Amount						$ 1,800,000
Common Stock [Member] | Sold by the Company [Member] | Option on Securities [Member]
Stock Issued During Period, Shares, New Issues	345,000
Common Stock [Member] | Sold by the Company [Member]
Stock Issued During Period, Shares, New Issues	2,345,000
Common Stock [Member] | Sold by Selling Stockholders [Member]
Stock Issued During Period, Shares Sold by Stockholders	300,000
Common Stock [Member]
Stock Repurchased and Retired During Period, Shares			(18,000)		(24,000)
Stock Issued During Period, Shares, New Issues and Shares Sold by Stockholders	2,645,000
Sale of Stock, Price Per Share	$ 18.50
Stock Issued During Period, Shares, New Issues				2,345,000
Underwriting Expenses [Member]
Payments of Stock Issuance Costs	$ 2,200,000
Other Offering Costs [Member]
Payments of Stock Issuance Costs	300,000
Preferred Stock, Shares Authorized			2,000,000	2,000,000
Preferred Stock, Par or Stated Value Per Share			$ 0.01	$ 0.01
Preferred Stock, Shares Outstanding			0	0
Preferred Stock, Shares Issued			0	0
Stock Repurchased and Retired During Period, Shares		387,109		0	24,098
Common Stock, Shares Authorized			30,000,000	15,000,000			30,000,000
Stock Repurchase Program, Authorized Amount								$ 5,000,000
Stock Repurchased and Retired During Period, Value		$ 3,200,000	$ 227,000		$ 203,000
Proceeds from Issuance of Common Stock, Net			$ 40,900,000
Proceeds from Issuance of Common Stock	$ 43,400,000			$ 40,879,000

Note 8 - Stock-Based Compensa39

Note 8 - Stock-Based Compensation (Details Textual) - USD ($) shares in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Apr. 30, 2015
Employee Stock Option [Member] | Employee Member
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
Employee Stock Option [Member] | Non Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		1 year
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		5 years
Common Stock, Capital Shares Reserved for Future Issuance		3.7			1.5
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		1.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		$ 1.2	$ 5	$ 0.5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		1	$ 0.7	$ 0.5
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options		$ 2
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 255 days

Note 8 - Stock-based Compensa40

Note 8 - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock-based compensation	$ 1,363	$ 856	$ 584

Note 8 - Stock-Based Compensa41

Note 8 - Stock-Based Compensation - Stock Options Fair Value Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Expected volatility	40.70%	36.80%	38.80%
Risk-free interest rate	0.90%	0.70%	0.60%
Dividend yield	0.00%	0.00%	0.00%
Expected life (in years)	3 years	2 years 328 days	3 years 146 days
Weighted average fair value per option granted (in dollars per share)	$ 6.67	$ 4.15	$ 2.53

Note 8 - Stock-Based Compensa42

Note 8 - Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Outstanding, shares under option (in shares)	740,250	783,297	673,942
Outstanding, weighted average exercise price (in dollars per share)	$ 10.66	$ 6.94	$ 6.09
Granted, shares under option (in shares)	380,268	309,900	276,800
Granted, weighted average exercise price (in dollars per share)	$ 23.28	$ 16.24	$ 8.87
Forfeited, shares under option (in shares)	(81,213)	(26,650)	(90,104)
Forfeited, weighted average exercise price (in dollars per share)	$ 19.73	$ 13.08	$ 9.39
Exercised, shares under option (in shares)	(77,837)	(326,297)	(77,341)
Exercised, weighted average exercise price (in dollars per share)	$ 7.40	$ 6.82	$ 3.63
Outstanding, shares under option (in shares)	961,468	740,250	783,297
Outstanding, weighted average exercise price (in dollars per share)	$ 15.15	$ 10.66	$ 6.94
Outstanding, weighted average remaining contractual term (years)	2 years 292 days
Outstanding, aggregate intrinsic value	$ 3,248
Exercisable at December 31, 2015 (in shares)	381,650
Exercisable at December 31, 2015 (in dollars per share)	$ 11.92
Exercisable at December 31, 2015	2 years 73 days
Exercisable at December 31, 2015	$ 1,971

Note 8 - Options Outstanding an

Note 8 - Options Outstanding and Execerisable (Details)	12 Months Ended
	Dec. 31, 2015$ / sharesshares
Range 1 [Member]
Range of exercise prices, lower limit (in dollars per share)	$ 4.99
Range of exercise prices, upper limit (in dollars per share)	$ 8.71
Options outstanding (in shares) | shares	378,025
Options outstanding - weighted average remaining contractual life	1 year 182 days
Options outstanding - weighted average exercise price (in dollars per share)	$ 7.36
Options exercisable (in shares) | shares	221,800
Options exercisable - weighted average exercise price (in dollars per share)	$ 7.05
Range 2 [Member]
Range of exercise prices, lower limit (in dollars per share)	11.82
Range of exercise prices, upper limit (in dollars per share)	$ 18.85
Options outstanding (in shares) | shares	261,975
Options outstanding - weighted average remaining contractual life	3 years 36 days
Options outstanding - weighted average exercise price (in dollars per share)	$ 16.15
Options exercisable (in shares) | shares	102,100
Options exercisable - weighted average exercise price (in dollars per share)	$ 15.97
Range 3 [Member]
Options outstanding (in shares) | shares	321,468
Options outstanding - weighted average remaining contractual life	4 years 36 days
Options outstanding - weighted average exercise price (in dollars per share)	$ 23.49
Options exercisable (in shares) | shares	57,750
Options exercisable - weighted average exercise price (in dollars per share)	$ 23.49
Options outstanding (in shares) | shares	961,468
Options outstanding - weighted average remaining contractual life	2 years 292 days
Options outstanding - weighted average exercise price (in dollars per share)	$ 15.15
Options exercisable (in shares) | shares	381,650
Options exercisable - weighted average exercise price (in dollars per share)	$ 11.92

Note 9 - Employee Benefit Pla44

Note 9 - Employee Benefit Plans (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Apr. 30, 2015
Employee Stock Purchase Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance	425,000
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate	15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award	2,743	2,298	2,610
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 263,000	$ 216,000	$ 219,000
Common Stock, Capital Shares Reserved for Future Issuance	3,700,000			1,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent	95.00%

Note 10 - Commitments and Con45

Note 10 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Feb. 10, 2014
Operating Lease Term	5 years
Default Judgement Set Aside Amount		$ 3.5

Note 10 - Rent Expense (Details

Note 10 - Rent Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Minimum base rent	$ 9,618	$ 7,391	$ 6,160
Contingent rent	269	168	99
Total rent	$ 9,887	$ 7,559	$ 6,259

Note 10 - Future Minimum Lease

Note 10 - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2015USD ($)
2,016	$ 13,511
2,017	13,809
2,018	13,143
2,019	12,957
2,020	12,437
Thereafter	55,034
Total minimum lease payments	$ 120,891

Note 11 - Summarized Quarterly

Note 11 - Summarized Quarterly Unaudited Financial Data (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restaurant sales	$ 38,066	$ 35,925	$ 36,225	$ 32,807	$ 31,558	$ 30,037	$ 29,886	$ 27,616	$ 143,023	$ 119,097	$ 98,250
Income (loss) from operations	(1,953)	(1,401)	(28)	(892)	(841)	384	1,083	336	(4,273)	962	3,107
Net income (loss)	$ (2,011)	$ (1,468)	$ (93)	$ (925)	$ (916)	$ 349	$ 1,019	$ 251	$ (4,496)	$ 703	$ 2,712
Diluted net income (loss) per share (1) (in dollars per share)	$ (0.18)	$ (0.13)	$ (0.01)	$ (0.08)	$ (0.08)	$ 0.03	$ 0.11	$ 0.03	$ (0.40)	$ 0.07	$ 0.31