Plumas Bancorp (PLBC) 10-Q 30 Oct 19 2019 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 25, 2019
Document Information [Line Items]
Entity Registrant Name	Plumas Bancorp
Entity Central Index Key	0001168455
Trading Symbol	plbc
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		5,159,560
Entity Shell Company	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false
Title of 12(b) Security	Common Stock, no par value

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 77,880	$ 46,686
Investment securities available for sale	169,516	171,507
Loans, less allowance for loan losses of $7,226 at September 30, 2019 and $6,958 at December 31, 2018	598,001	562,498
Real estate acquired through foreclosure	1,094	1,170
Premises and equipment, net	14,554	14,287
Bank owned life insurance	13,102	12,856
Accrued interest receivable and other assets	14,404	15,394
Total assets	888,551	824,398
Deposits:
Non-interest bearing	353,203	304,039
Interest bearing	422,980	422,526
Total deposits	776,183	726,565
Repurchase agreements	13,389	13,058
Accrued interest payable and other liabilities	6,890	7,533
Junior subordinated deferrable interest debentures	10,310	10,310
Total liabilities	806,772	757,466
Commitments and contingencies (Note 5)
Shareholders’ equity:
Common stock, no par value; 22,500,000 shares authorized; issued and outstanding – 5,159,560 shares at September 30, 2019 and 5,137,476 at December 31, 2018	7,197	6,944
Retained earnings	72,449	62,005
Accumulated other comprehensive income (loss), net	2,133	(2,017)
Total shareholders’ equity	81,779	66,932
Total liabilities and shareholders’ equity	$ 888,551	$ 824,398

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans, allowance for loan losses	$ 7,226	$ 6,958
Common stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	22,500,000	22,500,000
Common stock, shares issued (in shares)	5,159,560	5,137,476
Common stock, shares outstanding (in shares)	5,159,560	5,137,476

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest Income:
Interest and fees on loans	$ 8,761	$ 7,693	$ 25,655	$ 21,680
Interest on investment securities	1,075	1,037	3,353	2,873
Other	171	113	445	402
Total interest income	10,007	8,843	29,453	24,955
Interest Expense:
Interest on deposits	304	159	923	462
Interest on junior subordinated deferrable interest debentures	131	131	406	370
Other	5	2	11	5
Total interest expense	440	292	1,340	837
Net interest income before provision for loan losses	9,567	8,551	28,113	24,118
Provision for Loan Losses	300	300	900	800
Net interest income after provision for loan losses	9,267	8,251	27,213	23,318
Non-Interest Income:
Service charges	676	628	1,996	1,919
Interchange revenue	642	572	1,739	1,619
Gain on sale of loans	313	564	788	1,763
Gain on equity securities with no readily determinable fair value				209
Gain (loss) on sale of investments			20	(8)
Other	515	520	1,578	1,538
Total non-interest income	2,146	2,284	6,121	7,040
Non-Interest Expenses:
Salaries and employee benefits	3,439	3,049	9,743	9,086
Occupancy and equipment	799	721	2,482	2,127
Other	1,637	1,658	5,077	4,893
Total non-interest expenses	5,875	5,428	17,302	16,106
Income before provision for income taxes	5,538	5,107	16,032	14,252
Provision for Income Taxes	1,536	1,411	4,402	3,830
Net income	$ 4,002	$ 3,696	$ 11,630	$ 10,422
Basic earnings per share (in dollars per share)	$ 0.78	$ 0.72	$ 2.26	$ 2.04
Diluted earnings per share (in dollars per share)	$ 0.77	$ 0.71	$ 2.22	$ 2

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 4,002	$ 3,696	$ 11,630	$ 10,422
Other comprehensive income:
Change in net unrealized gain/loss	979	(1,285)	5,912	(4,657)
Reclassification adjustments for net (gains) losses included in net income			(20)	8
Net unrealized holding gain (loss)	979	(1,285)	5,892	(4,649)
Related tax effect:
Change in net unrealized gain/loss	(289)	380	(1,748)	1,376
Reclassification of net gains (losses) included in net income			6	(2)
Income tax effect	(289)	380	(1,742)	1,374
Other comprehensive income (loss)	690	(905)	4,150	(3,275)
Total comprehensive income	$ 4,692	$ 2,791	$ 15,780	$ 7,147

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2017	5,064,972
Balance at Dec. 31, 2017	$ 6,415	$ 49,855	$ (570)	$ 55,700
Net income		10,422		10,422
Other comprehensive income (loss)			(3,275)	(3,275)
Cash dividends on common stock		(920)		(920)
Exercise of stock options and tax effect (in shares)	60,504
Exercise of stock options and tax effect	$ 291			291
Stock-based compensation expense	$ 148			148
Balance (in shares) at Sep. 30, 2018	5,125,476
Balance at Sep. 30, 2018	$ 6,854	59,357	(3,845)	62,366
Balance (in shares) at Dec. 31, 2018	5,137,476
Balance at Dec. 31, 2018	$ 6,944	62,005	(2,017)	66,932
Net income		11,630		11,630
Other comprehensive income (loss)			4,150	4,150
Cash dividends on common stock		(1,186)		(1,186)
Exercise of stock options and tax effect (in shares)	22,084
Exercise of stock options and tax effect	$ 103			103
Stock-based compensation expense	$ 150			150
Balance (in shares) at Sep. 30, 2019	5,159,560
Balance at Sep. 30, 2019	$ 7,197	$ 72,449	$ 2,133	$ 81,779

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows from Operating Activities:
Net income	$ 11,630,000	$ 10,422,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for Loan Losses	900,000	800,000
Change in deferred loan origination costs/fees, net	(553,000)	(1,232,000)
Depreciation and amortization	1,065,000	749,000
Stock-based compensation expense	150,000	148,000
(Gain) loss on sale of investments	(20,000)	8,000
Amortization of investment security premiums	598,000	518,000
Gain on equity securities with no readily determinable fair value		(209,000)
Gain on sale of OREO and other vehicles	(14,000)	(80,000)
Gain on sale of loans held for sale	(788,000)	(1,763,000)
Loans originated for sale	(16,766,000)	(34,289,000)
Proceeds from loan sales	17,887,000	37,327,000
Provision from change in OREO valuation		38,000
Earnings on bank-owned life insurance	(246,000)	(246,000)
Increase in accrued interest receivable and other assets	(297,000)	(74,000)
(Decrease) increase in accrued interest payable and other liabilities	(643,000)	334,000
Net cash provided by operating activities	12,903,000	12,451,000
Cash Flows from Investing Activities:
Proceeds from principal repayments from available-for-sale government-sponsored mortgage-backed securities	16,946,000	11,349,000
Purchases of available-for-sale securities	(21,471,000)	(40,286,000)
Proceeds from sale of available-for-sale securities	11,379,000	4,157,000
Net increase in loans	(36,881,000)	(55,871,000)
Proceeds from Bank owned life insurance		338,000
Proceeds from sale of OREO	85,000	568,000
Proceeds from sale of other vehicles	420,000	400,000
Purchase of premises and equipment	(1,053,000)	(3,079,000)
Net cash used in investing activities	(30,575,000)	(82,424,000)
Cash Flows from Financing Activities:
Net increase in demand, interest bearing and savings deposits	64,328,000	26,307,000
Net decrease in time deposits	(14,710,000)	(6,122,000)
Net increase (decrease) in securities sold under agreements to repurchase	331,000	(1,864,000)
Cash dividends paid on common stock	(1,186,000)	(920,000)
Proceeds from exercise of stock options	103,000	291,000
Net cash provided by financing activities	48,866,000	17,692,000
Increase (decrease) in cash and cash equivalents	31,194,000	(52,281,000)
Cash and Cash Equivalents at Beginning of Year	46,686,000	87,537,000
Cash and Cash Equivalents at End of Period	77,880,000	35,256,000
Supplemental Disclosure of Cash Flow Information:
Interest expense	1,334,000	842,000
Income taxes	4,409,000	3,336,000
Non-Cash Investing Activities:
Real estate and vehicles acquired through foreclosure	409,000	646,000
Non-Cash Financing Activities:
Common stock retired in connection with the exercise of stock options	$ 42,000	$ 29,000

Note 1 - The Business of Plumas

Note 1 - The Business of Plumas Bancorp	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Nature of Operations [Text Block]	1. THE BUSINESS OF PLUMAS BANCORP During 2002, one September 26, 2002. September 28, 2005. The Bank operates eleven December 2015 first 2018

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Consolidation and Basis of Presentation The consolidated financial statements include the accounts of the Company and the consolidated accounts of its wholly-owned subsidiary, Plumas Bank. All significant intercompany balances and transactions have been eliminated. Plumas Statutory Trust I and Trust II are not $347,000 $178,000 The accounting and reporting policies of Plumas Bancorp and subsidiary conform with accounting principles generally accepted in the United States of America and prevailing practices within the banking industry. In the opinion of management, the unaudited condensed consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position at September 30, 2019 three nine September 30, 2019 2018. December 31, 2018 The unaudited condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting on Form 10 not 2018 10 three nine September 30, 2019 may not Reclassifications Certain reclassifications have been made to prior years’ balances to conform to the classifications used in 2019. no S egment Information Management has determined that since all of the banking products and services offered by the Company are available in each branch of the Bank, all branches are located within the same economic environment and management does not No 10 Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, 606” 606, not Most of the Company’s revenue-generating transactions are not 606, not 606 Recently Adopted Accounting Pronouncements On February 25, 2016, 2016 02, not 12 2016 02 December 15, 2018. two not No. 2016 02 January 1, 2019 $565,000 In July 2018, No. 2018 11, No. 2018 11 No. 2016 02. 2018 11: 1 may not 2 may not 2016 02 January 1, 2019 No. 2018 11 January 1, 2019. 2018 11 not On March 30, 2017, 2017 08, not 2017 08 December 15, 2018. first No. 2017 08 January 1, 2019. No. 2017 08 not Pending Accounting Pronouncements In June 2016, No. 2016 13, No. 2016 13 1 2 not not No. 2016 13 No. 2016 13 December 15, 2019; December 15, 2018. first No 2016 13 No. 2016 13 On October 16, 2019, No. 2016 13 December 31, 2022, As the Company is a smaller reporting company and has not In August 2018, No. 2018 13, December 15, 2019, No. 2018 13 not

Note 3 - Investment Securities

Note 3 - Investment Securities Available for Sale	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	3. The amortized cost and estimated fair value of investment securities at September 30, 2019 December 31, 2018 Available-for-Sale September 30, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 134,990 $ 1,969 $ (253 ) $ 136,706 Obligations of states and political subdivisions 31,498 1,331 (19 ) 32,810 $ 166,488 $ 3,300 $ (272 ) $ 169,516 Net unrealized gain on available-for-sale investment securities totaling $3,028,000 $895,000 September 30, 2019. nine September 30, 2019 forty $11,379,000 $20,000 twenty-three $59,000 seventeen $39,000. No three September 30, 2019. Available-for-Sale December 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 135,059 $ 240 $ (2,621 ) $ 132,678 Obligations of states and political subdivisions 39,311 121 (603 ) 38,829 $ 174,370 $ 361 $ (3,224 ) $ 171,507 Unrealized loss on available-for-sale investment securities totaling $2,863,000 $846,000 December 31, 2018. nine September 30, 2018 eighteen $4,157,000 $8,000 eight $4,000 ten $12,000. No three September 30, 2018. There were no nine September 30, 2019 twelve December 31, 2018. no September 30, 2019 December 31, 2018. Investment securities with unrealized losses at September 30, 2019 December 31, 2018 September 30, 2019 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations-residential $ 18,348 $ 45 $ 20,844 $ 208 $ 39,192 $ 253 Obligations of states and political subdivisions 2,064 19 - - 2,064 19 $ 20,412 $ 64 $ 20,844 $ 208 $ 41,256 $ 272 December 31, 2018 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations-residential $ 26,478 $ 269 $ 77,476 $ 2,352 $ 103,954 $ 2,621 Obligations of states and political subdivisions 19,270 284 5,672 319 24,942 603 $ 45,748 $ 553 $ 83,148 $ 2,671 $ 128,896 $ 3,224 At September 30, 2019, 191 50 27 twelve 191 104 87 September 30, 2019, not not not September 30, 2019 The amortized cost and estimated fair value of investment securities at September 30, 2019 Amortized Cost Estimated Fair Value Within one year $ - $ - After one year through five years 3,415 3,504 After five years through ten years 6,228 6,430 After ten years 21,855 22,876 Investment securities not due at a single maturity date: Government-sponsored mortgage-backed securities 134,990 136,706 $ 166,488 $ 169,516 Expected maturities will differ from contractual maturities because the issuers of the securities may Investment securities with amortized costs totaling $84,586,000 $92,166,000 $85,280,000 $90,122,000 September 30, 2019 December 31, 2018,

Note 4 - Loans and the Allowanc

Note 4 - Loans and the Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	4. Outstanding loans are summarized below, in thousands: September 30, December 31, 2019 2018 Commercial $ 45,818 $ 49,563 Agricultural 77,529 69,160 Real estate – residential 14,960 15,900 Real estate – commercial 292,461 271,710 Real estate – construction and land development 42,727 40,161 Equity lines of credit 37,067 38,490 Auto 86,727 77,135 Other 4,467 4,080 Total loans 601,756 566,199 Deferred loan costs, net 3,471 3,257 Allowance for loan losses (7,226 ) (6,958 ) Total net loans $ 598,001 $ 562,498 Changes in the allowance for loan losses, in thousands, were as follows: September 30, December 31, 2019 2018 Balance, beginning of period $ 6,958 $ 6,669 Provision charged to operations 900 1,000 Losses charged to allowance (874 ) (1,191 ) Recoveries 242 480 Balance, end of period $ 7,226 $ 6,958 The recorded investment in impaired loans totaled $2,642,000 $1,275,000 September 30, 2019 December 31, 2018, $235,000 $633,000 September 30, 2019 $181,000 $424,000 December 31, 2018. no $2,009,000 $851,000 September 30, 2019 December 31, 2018, nine September 30, 2019 September 30, 2018 $1,771,000 $1,738,000, $45,000 $56,000 nine September 30, 2019 2018, No nine September 30, 2019 2018. Included in impaired loans are troubled debt restructurings. A troubled debt restructuring is a formal restructure of a loan where the Company for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower. The concessions may one To determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the Company’s internal underwriting policy. The carrying value of troubled debt restructurings at September 30, 2019 December 31, 2018 $1,046,000 $1,080,000, $34,000 $53,000 September 30, 2019 December 31, 2018, not September 30, 2019 December 31, 2018. There were no nine September 30, 2019 September 30, 2018. There were no twelve nine September 30, 2019 2018, At September 30, 2019 December 31, 2018, $2,598,000 $1,117,000, $116,000 $36,000 nine September 30, 2019 2018, $47,000 $7,000 three September 30, 2019 2018, no 90 September 30, 2019 December 31, 2018. Salaries and employee benefits totaling $1,716,000 $1,937,000 nine September 30, 2019 2018, $511,000 $703,000 three September 30, 2019 2018, The Company assigns a risk rating to all loans and periodically, but not $100,000 The risk ratings can be grouped into three Special Mention may Substandard not not Doubtful Loans not The following table shows the loan portfolio allocated by management's internal risk ratings at the dates indicated, in thousands: September 30 , 201 9 Commercial Credit Exposure Credit Risk Profile by Internally Assigned Grade Grade: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Total Pass $ 45,233 $ 74,739 $ 14,649 $ 286,504 $ 42,641 $ 36,111 $ 499,877 Special Mention 464 2,790 - 5,078 - - 8,332 Substandard 121 - 311 879 86 956 2,353 Doubtful - - - - - - - Total $ 45,818 $ 77,529 $ 14,960 $ 292,461 $ 42,727 $ 37,067 $ 510,562 December 31, 201 8 Commercial Credit Exposure Credit Risk Profile by Internally Assigned Grade Grade: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Total Pass $ 48,905 $ 68,910 $ 15,621 $ 268,159 $ 40,069 $ 38,304 $ 479,968 Special Mention 481 250 124 3,420 - - 4,275 Substandard 177 - 155 131 92 186 741 Doubtful - - - - - - - Total $ 49,563 $ 69,160 $ 15,900 $ 271,710 $ 40,161 $ 38,490 $ 484,984 Consumer Credit Exposure Consumer Credit Exposure Credit Risk Profile Based on Payment Activity Credit Risk Profile Based on Payment Activity September 30 , 201 9 December 31, 201 8 Auto Other Total Auto Other Total Grade: Performing $ 86,464 $ 4,462 $ 90,926 $ 76,734 $ 4,071 $ 80,805 Non-performing 263 5 268 401 9 410 Total $ 86,727 $ 4,467 $ 91,194 $ 77,135 $ 4,080 $ 81,215 The following tables show the allocation of the allowance for loan losses at the dates indicated, in thousands: Nine months ended September 30 , 201 9 : Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Auto Other Total Allowance for Loan Losses Beginning balance $ 914 $ 538 $ 214 $ 2,686 $ 758 $ 464 $ 1,289 $ 95 $ 6,958 Charge-offs (186 ) - - - - (6 ) (624 ) (58 ) (874 ) Recoveries 21 - 2 2 - 4 207 6 242 Provision 14 123 (42 ) 399 (118 ) (29 ) 494 59 900 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Three months ended September 30 , 201 9 : Allowance for Loan Losses Beginning balance $ 721 $ 627 $ 177 $ 2,997 $ 597 $ 468 $ 1,372 $ 99 $ 7,058 Charge-offs (49 ) - - - - (1 ) (140 ) (27 ) (217 ) Recoveries 5 - - 2 - 2 72 4 85 Provision 86 34 (3 ) 88 43 (36 ) 62 26 300 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Nine months ended September 30 , 2018: Allowance for Loan Losses Beginning balance $ 725 $ 623 $ 231 $ 2,729 $ 783 $ 533 $ 946 $ 99 $ 6,669 Charge-offs (325 ) - - - - - (628 ) (35 ) (988 ) Recoveries 23 - 93 19 3 4 213 10 365 Provision 345 (26 ) (124 ) (124 ) 122 (48 ) 635 20 800 Ending balance $ 768 $ 597 $ 200 $ 2,624 $ 908 $ 489 $ 1,166 $ 94 $ 6,846 Three months ended September 30 , 2018: Allowance for Loan Losses Beginning balance $ 853 $ 546 $ 195 $ 2,699 $ 780 $ 481 $ 1,044 $ 100 $ 6,698 Charge-offs (59 ) - - - - - (152 ) (14 ) (225 ) Recoveries 8 - 2 1 1 1 58 2 73 Provision (34 ) 51 3 (76 ) 127 7 216 6 300 Ending balance $ 768 $ 597 $ 200 $ 2,624 $ 908 $ 489 $ 1,166 $ 94 $ 6,846 September 30 , 2019: Allowance for Loan Losses Ending balance: individually evaluated for impairment $ 83 $ - $ 28 $ 118 $ 6 $ - $ - $ - $ 235 Ending balance: collectively evaluated for impairment 680 661 146 2,969 634 433 1,366 102 6,991 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Loans Ending balance: individually evaluated for impairment 92 250 642 879 112 667 - - 2,642 Ending balance: collectively evaluated for impairment $ 45,726 $ 77,279 $ 14,318 $ 291,582 $ 42,615 $ 36,400 $ 86,727 $ 4,467 $ 599,114 Ending balance $ 45,818 $ 77,529 $ 14,960 $ 292,461 $ 42,727 $ 37,067 $ 86,727 $ 4,467 $ 601,756 December 31, 2018: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Auto Other Total Allowance for Loan Losses Ending balance: individually evaluated for impairment $ 128 $ - 41 $ - $ 12 $ - $ - $ - $ 181 Ending balance: collectively evaluated for impairment $ 786 $ 538 $ 173 $ 2,686 $ 746 $ 464 $ 1,289 $ 95 $ 6,777 Ending Balance $ 914 $ 538 $ 214 $ 2,686 $ 758 $ 464 $ 1,289 $ 95 $ 6,958 Loans Ending balance: individually evaluated for impairment $ 128 $ 250 $ 649 $ 131 $ 117 $ - $ - $ - $ 1,275 Ending balance: collectively evaluated for impairment 49,435 68,910 15,251 271,579 40,044 38,490 77,135 4,080 564,924 Ending balance $ 49,563 $ 69,160 $ 15,900 $ 271,710 $ 40,161 $ 38,490 $ 77,135 $ 4,080 $ 566,199 The following table shows an aging analysis of the loan portfolio by the time past due, in thousands: Total September 30 , 201 9 30-89 Days 90 Days and Still Past Due and Past Due Accruing Nonaccrual Nonaccrual Current Total Commercial $ 142 $ - $ 98 $ 240 $ 45,578 $ 45,818 Agricultural - - - - 77,529 77,529 Real estate – residential 5 - 311 316 14,644 14,960 Real estate – commercial 63 - 879 942 291,519 292,461 Real estate - construction & land - - 86 86 42,641 42,727 Equity Lines of Credit 225 - 956 1,181 35,886 37,067 Auto 1,237 - 263 1,500 85,227 86,727 Other 40 - 5 45 4,422 4,467 Total $ 1,712 $ - $ 2,598 $ 4,310 $ 597,446 $ 601,756 Total December 31, 201 8 30-89 Days 90 Days and Still Past Due and Past Due Accruing Nonaccrual Nonaccrual Current Total Commercial $ 11 $ - $ 144 $ 155 $ 49,408 $ 49,563 Agricultural - - - - 69,160 69,160 Real estate – residential 154 - 155 309 15,591 15,900 Real estate - commercial - - 131 131 271,579 271,710 Real estate - construction & land - - 92 92 40,069 40,161 Equity Lines of Credit 596 - 186 782 37,708 38,490 Auto 1,725 - 401 2,126 75,009 77,135 Other 85 - 8 93 3,987 4,080 Total $ 2,571 $ - $ 1,117 $ 3,688 $ 562,511 $ 566,199 The following tables show information related to impaired loans at September 30, 2019, Unpaid Average Interest Recorded Principal Related Recorded Income As of September 30 , 201 9 : Investment Balance Allowance Investment Recognized With no related allowance recorded: Commercial $ - $ - $ - $ - $ - Agricultural 250 250 - 250 13 Real estate – residential 464 477 - 375 22 Real estate – commercial 628 641 - 481 - Real estate – construction & land - - - - - Equity Lines of Credit 667 691 - 272 - Auto - - - - - Other - - - - - With an allowance recorded: Commercial $ 92 $ 92 $ 83 $ 2 $ - Agricultural - - - - - Real estate – residential 178 178 28 178 5 Real estate – commercial 251 257 118 101 - Real estate – construction & land 112 112 6 112 5 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total: Commercial $ 92 $ 92 $ 83 $ 2 $ - Agricultural 250 250 - 250 13 Real estate – residential 642 655 28 553 27 Real estate – commercial 879 898 118 582 - Real estate – construction & land 112 112 6 112 5 Equity Lines of Credit 667 691 - 272 - Auto - - - - - Other - - - - - Total $ 2,642 $ 2,698 $ 235 $ 1,771 $ 45 The following tables show information related to impaired loans at December 31, 2018, Unpaid Average Interest Recorded Principal Related Recorded Income As of December 31, 201 8 : Investment Balance Allowance Investment Recognized With no related allowance recorded: Commercial $ - $ - $ - $ - $ - Agricultural 250 250 - 252 19 Real estate – residential 470 481 - 470 38 Real estate – commercial 131 144 - 136 - Real estate – construction & land - - - - - Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - With an allowance recorded: Commercial $ 128 $ 128 $ 128 $ 1 $ - Agricultural - - - - - Real estate – residential 179 179 41 181 7 Real estate – commercial - - - - - Real estate – construction & land 117 117 12 120 7 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total: Commercial $ 128 $ 128 $ 128 $ 1 $ - Agricultural 250 250 - 252 19 Real estate – residential 649 660 41 651 45 Real estate – commercial 131 144 - 136 - Real estate – construction & land 117 117 12 120 7 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total $ 1,275 $ 1,299 $ 181 $ 1,160 $ 71

Note 5 - Commitments and Contin

Note 5 - Commitments and Contingencies	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	5. The Company is party to claims and legal proceedings arising in the ordinary course of business. In the opinion of the Company’s management, the amount of ultimate liability with respect to such proceedings will not In the normal course of business, there are various outstanding commitments to extend credit, which are not $104.9 $126.9 $431 $417 September 30, 2019 December 31, 2018, Of the loan commitments outstanding at September 30, 2019, $8.5 twelve not may Stand-by letters of credit are conditional commitments written to guarantee the performance of a customer to a third not September 30, 2019 December 31, 2018.

Note 6 - Leases

Note 6 - Leases	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	6. LEASE S The Company leases four three one two not not three two No. 2016 02 January 1, 2019 $ 565,000 As our leases do not 5%. September 30, 2019 $328,000 $347,000 $19,000. The following table presents a maturity analysis of the operating lease liability at September 30, 2019, Maturities of Lease Liabilities Three months ended December 31, 2019 $ 62 Year ended December 31, 2020 163 Year ended December 31, 2021 63 Year ended December 31, 2022 59 347 Less: Present value discount (19 ) Lease Liability September 30, 2019 $ 328 The weighted-average remaining lease term is 2.2 Total lease costs for the nine three September 30, 2019 Nine Months ended September 30, Three Months ended September 30, 2019 2019 Operating leases $ 247 $ 71 Short-term leases 63 37 Variable lease expense 32 10 Total lease expense $ 342 $ 118 Variable lease expense consists primarily of maintenance expense paid to maintain common areas. Rent expense for the nine three September 30, 2018, 2016 02, $275,000 $92,000, $28,000 $10,000, Cash paid on operating leases was $247,000 $71,000, nine three September 30, 2019. The following table presents future minimum rental payments under leases with terms in excess of one December 31, 2018 840, “Leases” Year Ending December 31, 2019 $ 248,000 2020 163,000 2021 63,000 2022 59,000 2023 - $ 533,000

Note 7 - Earnings Per Share

Note 7 - Earnings Per Share	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Earnings Per Share [Text Block]	7. Basic earnings per share is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock, such as stock options, result in the issuance of common stock which shares in the earnings of the Company. The treasury stock method has been applied to determine the dilutive effect of stock options in computing diluted earnings per share. For the Three Months For the Nine Month s Ended September 30, Ended September 30, (In thousands, except per share data) 2019 2018 2019 2018 Net Income: Net income $ 4,002 $ 3,696 $ 11,630 $ 10,422 Earnings Per Share: Basic earnings per share $ 0.78 $ 0.72 $ 2.26 $ 2.04 Diluted earnings per share $ 0.77 $ 0.71 $ 2.22 $ 2.00 Weighted Average Number of Shares Outstanding: Basic shares 5,160 5,122 5,153 5,100 Diluted shares 5,227 5,225 5,227 5,219 Shares of common stock issuable under stock options for which the exercise prices were greater than the average market prices were not not not 71,000 71,000 three September 30, 2019 2018, not not 71,000 71,000 nine September 30, 2019 2018,

Note 8 - Stock-based Compensati

Note 8 - Stock-based Compensation	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	8. In 2001, no no September 30, 2019. As of September 30, 2019, no A summary of the activity within the 2001 Shares Weighted Average Exercise Price Options outstanding at January 1, 2019 6,193 $ 2.95 Options exercised (6,193 ) 2.95 Options outstanding at September 30, 2019 - $ - In May 2013, 2013 415,085 238,500 September 30, 2019. 2013 may not nine not ten No nine September 30, 2019. nine September 30, 2018 76,000 The fair value of each option was estimated on the date of grant using the following assumptions. 2018 Expected life of stock options (in years) 5.1 Risk free interest rate 2.38 % Volatility 30.4 % Dividend yields 1.39 % Weighted-average fair value of options granted during the three months ended March 31, 2018 $ 6.54 The Company determines the fair value of options on the date of grant using a Black-Scholes-Merton option pricing model that uses assumptions based on expected option life, expected stock volatility and the risk-free interest rate. The expected volatility assumptions used by the Company are based on the historical volatility of the Company’s common stock over the most recent period commensurate with the estimated expected life of the Company’s stock options. The Company bases its expected life assumption on its historical experience and on the terms and conditions of the stock options it grants to employees. The risk-free rate is based on the U.S. Treasury yield curve for the periods within the contractual life of the options in effect at the time of the grant. A summary of the activity within the 2013 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term in Years Intrinsic Value Options outstanding at January 1, 2019 196,500 $ 13.84 Options cancelled (2,400 ) $ 8.75 Options exercised (17,515 ) 7.24 Options outstanding at September 30, 2019 176,585 $ 14.57 4.8 $ 1,292,000 Options exercisable at September 30, 2019 102,860 $ 10.62 4.1 $ 1,059,000 Expected to vest after September 30, 2019 65,328 $ 20.07 5.8 $ 233,000 As of September 30, 2019, $307,000 2.1 The total fair value of options vested during the nine September 30, 2019 2018 $197,000 $150,000, $311,000 $1,261,000 nine September 30, 2019 2018, Compensation cost related to stock options recognized in operating results under the stock option plans was $150,000 $148,000 nine September 30, 2019 2018, $10,000 nine September 30, 2019 September 30, 2018. $50,000 three September 30, 2019 2018. $3,000 three September 30, 2019 September 30, 2018. Cash received from option exercises under the plans for the nine September 30, 2019 2018 $103,000 $291,000, $24,000 $99,000 nine September 30, 2019 2018,

Note 9 - Income Taxes

Note 9 - Income Taxes	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	9. The Company files its income taxes on a consolidated basis with its subsidiary. Income tax expense is the total of current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are recognized for the tax consequences of temporary differences between the reported amount of assets and liabilities and their tax bases. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. A valuation allowance is recognized if, based on the weight of available evidence management believes it is more likely than not not When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not not not 50 Interest expense and penalties associated with unrecognized tax benefits, if any, are classified as income tax expense in the consolidated statements of income. There have been no nine September 30, 2019.

Note 10 - Fair Value Measuremen

Note 10 - Fair Value Measurement	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Fair Value Disclosures [Text Block]	10. The Company measures fair value under the fair value hierarchy described below. Level 1: Level 2: not Level 3: one not may In certain cases, the inputs used to measure fair value may Management monitors the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy. Changes in economic conditions or model-based valuation techniques may one Management evaluates the significance of transfers between levels based upon the nature of the financial instrument and size of the transfer relative to total assets, total liabilities or total earnings. Fair Value of Financial Instruments The carrying amounts and estimated fair values of financial instruments, at September 30, 2019 Fair Value Measurements at September 30, 2019 Using: Carrying Value Level 1 Level 2 Level 3 Total Fair Value Financial assets: Cash and cash equivalents $ 77,880 $ 77,880 $ - $ - $ 77,880 Investment securities 169,516 - 169,516 - 169,516 Loans, net 598,001 - - 631,755 631,755 FHLB stock 3,517 - - - N/A Accrued interest receivable 3,205 13 594 2,598 3,205 Financial liabilities: Deposits 776,183 733,927 42,266 - 776,193 Repurchase agreements 13,389 - 13,389 - 13,389 Junior subordinated deferrable interest debentures 10,310 - - 7,473 7,473 Accrued interest payable 94 12 60 22 94 The carrying amounts and estimated fair values of financial instruments, at December 31, 2018 Fair Value Measurements at December 31, 2018 Using: Carrying Value Level 1 Level 2 Level 3 Total Fair Value Financial assets: Cash and cash equivalents $ 46,686 $ 46,686 $ - $ - $ 46,686 Investment securities 171,507 - 171,507 - 171,507 Loans, net 562,498 - - 580,396 580,396 FHLB stock 3,027 - - - N/A Accrued interest receivable 3,345 22 685 2,638 3,345 Financial liabilities: Deposits 726,565 669,599 57,050 - 726,649 Repurchase agreements 13,058 - 13,058 - 13,058 Junior subordinated deferrable interest debentures 10,310 - - 8,092 8,092 Accrued interest payable 88 11 52 25 88 Because no 3. These estimates do not one not The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring and non-recurring basis as of September 30, 2019 December 31, 2018, Assets and liabilities measured at fair value on a recurring basis at September 30, 2019 Fair Value Measurements at September 30, 2019 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 136,706 $ - $ 136,706 $ - Obligations of states and political subdivisions 32,810 32,810 $ 169,516 $ - $ 169,516 $ - Assets and liabilities measured at fair value on a recurring basis at December 31, 2018 Fair Value Measurements at December 31, 2018 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 132,678 $ - $ 132,678 $ - Obligations of states and political subdivisions 38,829 38,829 $ 171,507 $ - $ 171,507 $ - The fair value of securities available-for-sale equals quoted market price, if available. If quoted market prices are not no 2019 2018. Assets and liabilities measured at fair value on a non-recurring basis at September 30, 2019 Fair Value Measurements at September 30, 2019 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total (Losses) Nine Months Ended September 30, 2019 Assets: Impaired loans: Real estate – commercial $ 133 $ - $ - $ 133 $ (118 ) Other real estate: - - Real estate – residential 292 - - 292 - Real estate – commercial 347 - - 347 - Construction and land 455 - - 455 - Total other real estate 1,094 - - 1,094 - Total $ 1,643 $ - $ - $ 1,643 $ (118 ) Assets and liabilities measured at fair value on a non-recurring basis at December 31, 2018 Fair Value Measurements at December 31, 2018 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total (Losses) Nine Months Ended September 30, 2018 Assets: Impaired loans: Construction and land $ - $ - $ - $ - $ (25 ) Other real estate: Real estate – residential 368 - - 368 (38 ) Real estate – commercial 347 - - 347 - )Construction and land 455 - - 455 - Total other real estate 1,170 - - 1,170 (38 ) Total $ 1,170 $ - $ - $ 1,170 $ (63 ) The Company has no The following methods were used to estimate fair value. Collateral-Dependent Impaired Loans not third 3 $118,000 $63,000 nine September 30, 2019 2018, Other Real Estate: third 3 Appraisals for both collateral-dependent impaired loans and other real estate are performed by certified general appraisers (for commercial properties) or certified residential appraisers (for residential properties) whose qualifications and licenses have been reviewed and verified by the Company. Once received, a member of the Loan Administration Department reviews the assumptions and approaches utilized in the appraisal as well as the overall resulting fair value in comparison with independent data sources such as recent market data or industry-wide statistics. On a quarterly basis, the Company compares the actual selling price of similar collateral that has been liquidated to the most recent appraised value for unsold properties to determine what additional adjustment, if any, should be made to the appraisal value to arrive at fair value. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. The following table presents quantitative information about Level 3 September 30, 2019 December 31, 2018 ( Description Fair Value 9/30/2019 Fair Value 12/31/2018 Valuation Technique Significant Unobservable Input Range (Weighted Average) 9/30/2019 Range (Weighted Average) 12/31/2018 Impaired Loans: RE – Commercial $ 133 $ - Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% (10% ) N/A Other Real Estate: RE – Residential $ 292 $ 368 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% (10% ) 10% - 34% (16% ) RE – Commercial $ 347 $ 347 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 16% - 17% (16% ) 16% - 17% (16% ) Construction and Land $ 455 $ 455 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% - 51% (24% ) 10% - 51% (24% )

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Consolidation and Basis of Presentation The consolidated financial statements include the accounts of the Company and the consolidated accounts of its wholly-owned subsidiary, Plumas Bank. All significant intercompany balances and transactions have been eliminated. Plumas Statutory Trust I and Trust II are not $347,000 $178,000 The accounting and reporting policies of Plumas Bancorp and subsidiary conform with accounting principles generally accepted in the United States of America and prevailing practices within the banking industry. In the opinion of management, the unaudited condensed consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position at September 30, 2019 three nine September 30, 2019 2018. December 31, 2018 The unaudited condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting on Form 10 not 2018 10 three nine September 30, 2019 may not
Reclassification, Policy [Policy Text Block]	Reclassifications Certain reclassifications have been made to prior years’ balances to conform to the classifications used in 2019. no
Segment Reporting, Policy [Policy Text Block]	S egment Information Management has determined that since all of the banking products and services offered by the Company are available in each branch of the Bank, all branches are located within the same economic environment and management does not No 10
Revenue from Contract with Customer [Policy Text Block]	Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, 606” 606, not Most of the Company’s revenue-generating transactions are not 606, not 606
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Pronouncements On February 25, 2016, 2016 02, not 12 2016 02 December 15, 2018. two not No. 2016 02 January 1, 2019 $565,000 In July 2018, No. 2018 11, No. 2018 11 No. 2016 02. 2018 11: 1 may not 2 may not 2016 02 January 1, 2019 No. 2018 11 January 1, 2019. 2018 11 not On March 30, 2017, 2017 08, not 2017 08 December 15, 2018. first No. 2017 08 January 1, 2019. No. 2017 08 not Pending Accounting Pronouncements In June 2016, No. 2016 13, No. 2016 13 1 2 not not No. 2016 13 No. 2016 13 December 15, 2019; December 15, 2018. first No 2016 13 No. 2016 13 On October 16, 2019, No. 2016 13 December 31, 2022, As the Company is a smaller reporting company and has not In August 2018, No. 2018 13, December 15, 2019, No. 2018 13 not

Note 3 - Investment Securitie_2

Note 3 - Investment Securities Available for Sale (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Available-for-Sale September 30, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 134,990 $ 1,969 $ (253 ) $ 136,706 Obligations of states and political subdivisions 31,498 1,331 (19 ) 32,810 $ 166,488 $ 3,300 $ (272 ) $ 169,516 Available-for-Sale December 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 135,059 $ 240 $ (2,621 ) $ 132,678 Obligations of states and political subdivisions 39,311 121 (603 ) 38,829 $ 174,370 $ 361 $ (3,224 ) $ 171,507
Schedule of Unrealized Loss on Investments [Table Text Block]	September 30, 2019 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations-residential $ 18,348 $ 45 $ 20,844 $ 208 $ 39,192 $ 253 Obligations of states and political subdivisions 2,064 19 - - 2,064 19 $ 20,412 $ 64 $ 20,844 $ 208 $ 41,256 $ 272 December 31, 2018 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Debt securities: U.S. Government-sponsored agencies collateralized by mortgage obligations-residential $ 26,478 $ 269 $ 77,476 $ 2,352 $ 103,954 $ 2,621 Obligations of states and political subdivisions 19,270 284 5,672 319 24,942 603 $ 45,748 $ 553 $ 83,148 $ 2,671 $ 128,896 $ 3,224
Investments Classified by Contractual Maturity Date [Table Text Block]	Amortized Cost Estimated Fair Value Within one year $ - $ - After one year through five years 3,415 3,504 After five years through ten years 6,228 6,430 After ten years 21,855 22,876 Investment securities not due at a single maturity date: Government-sponsored mortgage-backed securities 134,990 136,706 $ 166,488 $ 169,516

Note 4 - Loans and the Allowa_2

Note 4 - Loans and the Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	September 30, December 31, 2019 2018 Commercial $ 45,818 $ 49,563 Agricultural 77,529 69,160 Real estate – residential 14,960 15,900 Real estate – commercial 292,461 271,710 Real estate – construction and land development 42,727 40,161 Equity lines of credit 37,067 38,490 Auto 86,727 77,135 Other 4,467 4,080 Total loans 601,756 566,199 Deferred loan costs, net 3,471 3,257 Allowance for loan losses (7,226 ) (6,958 ) Total net loans $ 598,001 $ 562,498
Financing Receivable, Allowance for Credit Loss [Table Text Block]	September 30, December 31, 2019 2018 Balance, beginning of period $ 6,958 $ 6,669 Provision charged to operations 900 1,000 Losses charged to allowance (874 ) (1,191 ) Recoveries 242 480 Balance, end of period $ 7,226 $ 6,958 December 31, 2018: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Auto Other Total Allowance for Loan Losses Ending balance: individually evaluated for impairment $ 128 $ - 41 $ - $ 12 $ - $ - $ - $ 181 Ending balance: collectively evaluated for impairment $ 786 $ 538 $ 173 $ 2,686 $ 746 $ 464 $ 1,289 $ 95 $ 6,777 Ending Balance $ 914 $ 538 $ 214 $ 2,686 $ 758 $ 464 $ 1,289 $ 95 $ 6,958 Loans Ending balance: individually evaluated for impairment $ 128 $ 250 $ 649 $ 131 $ 117 $ - $ - $ - $ 1,275 Ending balance: collectively evaluated for impairment 49,435 68,910 15,251 271,579 40,044 38,490 77,135 4,080 564,924 Ending balance $ 49,563 $ 69,160 $ 15,900 $ 271,710 $ 40,161 $ 38,490 $ 77,135 $ 4,080 $ 566,199
Financing Receivable Credit Quality Indicators [Table Text Block]	September 30 , 201 9 Commercial Credit Exposure Credit Risk Profile by Internally Assigned Grade Grade: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Total Pass $ 45,233 $ 74,739 $ 14,649 $ 286,504 $ 42,641 $ 36,111 $ 499,877 Special Mention 464 2,790 - 5,078 - - 8,332 Substandard 121 - 311 879 86 956 2,353 Doubtful - - - - - - - Total $ 45,818 $ 77,529 $ 14,960 $ 292,461 $ 42,727 $ 37,067 $ 510,562 December 31, 201 8 Commercial Credit Exposure Credit Risk Profile by Internally Assigned Grade Grade: Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Total Pass $ 48,905 $ 68,910 $ 15,621 $ 268,159 $ 40,069 $ 38,304 $ 479,968 Special Mention 481 250 124 3,420 - - 4,275 Substandard 177 - 155 131 92 186 741 Doubtful - - - - - - - Total $ 49,563 $ 69,160 $ 15,900 $ 271,710 $ 40,161 $ 38,490 $ 484,984
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Nine months ended September 30 , 201 9 : Commercial Agricultural Real Estate- Residential Real Estate- Commercial Real Estate- Construction Equity LOC Auto Other Total Allowance for Loan Losses Beginning balance $ 914 $ 538 $ 214 $ 2,686 $ 758 $ 464 $ 1,289 $ 95 $ 6,958 Charge-offs (186 ) - - - - (6 ) (624 ) (58 ) (874 ) Recoveries 21 - 2 2 - 4 207 6 242 Provision 14 123 (42 ) 399 (118 ) (29 ) 494 59 900 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Three months ended September 30 , 201 9 : Allowance for Loan Losses Beginning balance $ 721 $ 627 $ 177 $ 2,997 $ 597 $ 468 $ 1,372 $ 99 $ 7,058 Charge-offs (49 ) - - - - (1 ) (140 ) (27 ) (217 ) Recoveries 5 - - 2 - 2 72 4 85 Provision 86 34 (3 ) 88 43 (36 ) 62 26 300 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Nine months ended September 30 , 2018: Allowance for Loan Losses Beginning balance $ 725 $ 623 $ 231 $ 2,729 $ 783 $ 533 $ 946 $ 99 $ 6,669 Charge-offs (325 ) - - - - - (628 ) (35 ) (988 ) Recoveries 23 - 93 19 3 4 213 10 365 Provision 345 (26 ) (124 ) (124 ) 122 (48 ) 635 20 800 Ending balance $ 768 $ 597 $ 200 $ 2,624 $ 908 $ 489 $ 1,166 $ 94 $ 6,846 Three months ended September 30 , 2018: Allowance for Loan Losses Beginning balance $ 853 $ 546 $ 195 $ 2,699 $ 780 $ 481 $ 1,044 $ 100 $ 6,698 Charge-offs (59 ) - - - - - (152 ) (14 ) (225 ) Recoveries 8 - 2 1 1 1 58 2 73 Provision (34 ) 51 3 (76 ) 127 7 216 6 300 Ending balance $ 768 $ 597 $ 200 $ 2,624 $ 908 $ 489 $ 1,166 $ 94 $ 6,846 September 30 , 2019: Allowance for Loan Losses Ending balance: individually evaluated for impairment $ 83 $ - $ 28 $ 118 $ 6 $ - $ - $ - $ 235 Ending balance: collectively evaluated for impairment 680 661 146 2,969 634 433 1,366 102 6,991 Ending balance $ 763 $ 661 $ 174 $ 3,087 $ 640 $ 433 $ 1,366 $ 102 $ 7,226 Loans Ending balance: individually evaluated for impairment 92 250 642 879 112 667 - - 2,642 Ending balance: collectively evaluated for impairment $ 45,726 $ 77,279 $ 14,318 $ 291,582 $ 42,615 $ 36,400 $ 86,727 $ 4,467 $ 599,114 Ending balance $ 45,818 $ 77,529 $ 14,960 $ 292,461 $ 42,727 $ 37,067 $ 86,727 $ 4,467 $ 601,756
Financing Receivable, Past Due [Table Text Block]	Total September 30 , 201 9 30-89 Days 90 Days and Still Past Due and Past Due Accruing Nonaccrual Nonaccrual Current Total Commercial $ 142 $ - $ 98 $ 240 $ 45,578 $ 45,818 Agricultural - - - - 77,529 77,529 Real estate – residential 5 - 311 316 14,644 14,960 Real estate – commercial 63 - 879 942 291,519 292,461 Real estate - construction & land - - 86 86 42,641 42,727 Equity Lines of Credit 225 - 956 1,181 35,886 37,067 Auto 1,237 - 263 1,500 85,227 86,727 Other 40 - 5 45 4,422 4,467 Total $ 1,712 $ - $ 2,598 $ 4,310 $ 597,446 $ 601,756 Total December 31, 201 8 30-89 Days 90 Days and Still Past Due and Past Due Accruing Nonaccrual Nonaccrual Current Total Commercial $ 11 $ - $ 144 $ 155 $ 49,408 $ 49,563 Agricultural - - - - 69,160 69,160 Real estate – residential 154 - 155 309 15,591 15,900 Real estate - commercial - - 131 131 271,579 271,710 Real estate - construction & land - - 92 92 40,069 40,161 Equity Lines of Credit 596 - 186 782 37,708 38,490 Auto 1,725 - 401 2,126 75,009 77,135 Other 85 - 8 93 3,987 4,080 Total $ 2,571 $ - $ 1,117 $ 3,688 $ 562,511 $ 566,199
Impaired Financing Receivables [Table Text Block]	Unpaid Average Interest Recorded Principal Related Recorded Income As of September 30 , 201 9 : Investment Balance Allowance Investment Recognized With no related allowance recorded: Commercial $ - $ - $ - $ - $ - Agricultural 250 250 - 250 13 Real estate – residential 464 477 - 375 22 Real estate – commercial 628 641 - 481 - Real estate – construction & land - - - - - Equity Lines of Credit 667 691 - 272 - Auto - - - - - Other - - - - - With an allowance recorded: Commercial $ 92 $ 92 $ 83 $ 2 $ - Agricultural - - - - - Real estate – residential 178 178 28 178 5 Real estate – commercial 251 257 118 101 - Real estate – construction & land 112 112 6 112 5 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total: Commercial $ 92 $ 92 $ 83 $ 2 $ - Agricultural 250 250 - 250 13 Real estate – residential 642 655 28 553 27 Real estate – commercial 879 898 118 582 - Real estate – construction & land 112 112 6 112 5 Equity Lines of Credit 667 691 - 272 - Auto - - - - - Other - - - - - Total $ 2,642 $ 2,698 $ 235 $ 1,771 $ 45 Unpaid Average Interest Recorded Principal Related Recorded Income As of December 31, 201 8 : Investment Balance Allowance Investment Recognized With no related allowance recorded: Commercial $ - $ - $ - $ - $ - Agricultural 250 250 - 252 19 Real estate – residential 470 481 - 470 38 Real estate – commercial 131 144 - 136 - Real estate – construction & land - - - - - Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - With an allowance recorded: Commercial $ 128 $ 128 $ 128 $ 1 $ - Agricultural - - - - - Real estate – residential 179 179 41 181 7 Real estate – commercial - - - - - Real estate – construction & land 117 117 12 120 7 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total: Commercial $ 128 $ 128 $ 128 $ 1 $ - Agricultural 250 250 - 252 19 Real estate – residential 649 660 41 651 45 Real estate – commercial 131 144 - 136 - Real estate – construction & land 117 117 12 120 7 Equity Lines of Credit - - - - - Auto - - - - - Other - - - - - Total $ 1,275 $ 1,299 $ 181 $ 1,160 $ 71
Consumer Portfolio Segment [Member]
Notes Tables
Financing Receivable Credit Quality Indicators [Table Text Block]	Consumer Credit Exposure Consumer Credit Exposure Credit Risk Profile Based on Payment Activity Credit Risk Profile Based on Payment Activity September 30 , 201 9 December 31, 201 8 Auto Other Total Auto Other Total Grade: Performing $ 86,464 $ 4,462 $ 90,926 $ 76,734 $ 4,071 $ 80,805 Non-performing 263 5 268 401 9 410 Total $ 86,727 $ 4,467 $ 91,194 $ 77,135 $ 4,080 $ 81,215

Note 6 - Leases (Tables)

Note 6 - Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Maturities of Lease Liabilities Three months ended December 31, 2019 $ 62 Year ended December 31, 2020 163 Year ended December 31, 2021 63 Year ended December 31, 2022 59 347 Less: Present value discount (19 ) Lease Liability September 30, 2019 $ 328
Lease, Cost [Table Text Block]	Nine Months ended September 30, Three Months ended September 30, 2019 2019 Operating leases $ 247 $ 71 Short-term leases 63 37 Variable lease expense 32 10 Total lease expense $ 342 $ 118
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Year Ending December 31, 2019 $ 248,000 2020 163,000 2021 63,000 2022 59,000 2023 - $ 533,000

Note 7 - Earnings Per Share (Ta

Note 7 - Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Nine Month s Ended September 30, Ended September 30, (In thousands, except per share data) 2019 2018 2019 2018 Net Income: Net income $ 4,002 $ 3,696 $ 11,630 $ 10,422 Earnings Per Share: Basic earnings per share $ 0.78 $ 0.72 $ 2.26 $ 2.04 Diluted earnings per share $ 0.77 $ 0.71 $ 2.22 $ 2.00 Weighted Average Number of Shares Outstanding: Basic shares 5,160 5,122 5,153 5,100 Diluted shares 5,227 5,225 5,227 5,219

Note 8 - Stock-based Compensa_2

Note 8 - Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Shares Weighted Average Exercise Price Options outstanding at January 1, 2019 6,193 $ 2.95 Options exercised (6,193 ) 2.95 Options outstanding at September 30, 2019 - $ - Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term in Years Intrinsic Value Options outstanding at January 1, 2019 196,500 $ 13.84 Options cancelled (2,400 ) $ 8.75 Options exercised (17,515 ) 7.24 Options outstanding at September 30, 2019 176,585 $ 14.57 4.8 $ 1,292,000 Options exercisable at September 30, 2019 102,860 $ 10.62 4.1 $ 1,059,000 Expected to vest after September 30, 2019 65,328 $ 20.07 5.8 $ 233,000
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2018 Expected life of stock options (in years) 5.1 Risk free interest rate 2.38 % Volatility 30.4 % Dividend yields 1.39 % Weighted-average fair value of options granted during the three months ended March 31, 2018 $ 6.54

Note 10 - Fair Value Measurem_2

Note 10 - Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	Fair Value Measurements at September 30, 2019 Using: Carrying Value Level 1 Level 2 Level 3 Total Fair Value Financial assets: Cash and cash equivalents $ 77,880 $ 77,880 $ - $ - $ 77,880 Investment securities 169,516 - 169,516 - 169,516 Loans, net 598,001 - - 631,755 631,755 FHLB stock 3,517 - - - N/A Accrued interest receivable 3,205 13 594 2,598 3,205 Financial liabilities: Deposits 776,183 733,927 42,266 - 776,193 Repurchase agreements 13,389 - 13,389 - 13,389 Junior subordinated deferrable interest debentures 10,310 - - 7,473 7,473 Accrued interest payable 94 12 60 22 94 Fair Value Measurements at December 31, 2018 Using: Carrying Value Level 1 Level 2 Level 3 Total Fair Value Financial assets: Cash and cash equivalents $ 46,686 $ 46,686 $ - $ - $ 46,686 Investment securities 171,507 - 171,507 - 171,507 Loans, net 562,498 - - 580,396 580,396 FHLB stock 3,027 - - - N/A Accrued interest receivable 3,345 22 685 2,638 3,345 Financial liabilities: Deposits 726,565 669,599 57,050 - 726,649 Repurchase agreements 13,058 - 13,058 - 13,058 Junior subordinated deferrable interest debentures 10,310 - - 8,092 8,092 Accrued interest payable 88 11 52 25 88
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurements at September 30, 2019 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 136,706 $ - $ 136,706 $ - Obligations of states and political subdivisions 32,810 32,810 $ 169,516 $ - $ 169,516 $ - Fair Value Measurements at December 31, 2018 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: U.S. Government-sponsored agencies collateralized by mortgage obligations- residential $ 132,678 $ - $ 132,678 $ - Obligations of states and political subdivisions 38,829 38,829 $ 171,507 $ - $ 171,507 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	Fair Value Measurements at September 30, 2019 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total (Losses) Nine Months Ended September 30, 2019 Assets: Impaired loans: Real estate – commercial $ 133 $ - $ - $ 133 $ (118 ) Other real estate: - - Real estate – residential 292 - - 292 - Real estate – commercial 347 - - 347 - Construction and land 455 - - 455 - Total other real estate 1,094 - - 1,094 - Total $ 1,643 $ - $ - $ 1,643 $ (118 ) Fair Value Measurements at December 31, 2018 Using Total Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total (Losses) Nine Months Ended September 30, 2018 Assets: Impaired loans: Construction and land $ - $ - $ - $ - $ (25 ) Other real estate: Real estate – residential 368 - - 368 (38 ) Real estate – commercial 347 - - 347 - )Construction and land 455 - - 455 - Total other real estate 1,170 - - 1,170 (38 ) Total $ 1,170 $ - $ - $ 1,170 $ (63 )
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Description Fair Value 9/30/2019 Fair Value 12/31/2018 Valuation Technique Significant Unobservable Input Range (Weighted Average) 9/30/2019 Range (Weighted Average) 12/31/2018 Impaired Loans: RE – Commercial $ 133 $ - Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% (10% ) N/A Other Real Estate: RE – Residential $ 292 $ 368 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% (10% ) 10% - 34% (16% ) RE – Commercial $ 347 $ 347 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 16% - 17% (16% ) 16% - 17% (16% ) Construction and Land $ 455 $ 455 Third Party appraisals Management Adjustments to Reflect Current Conditions and Selling Costs 10% - 51% (24% ) 10% - 51% (24% )

Note 1 - The Business of Plum_2

Note 1 - The Business of Plumas Bancorp (Details Textual)	Sep. 30, 2019
Number of Branches	11

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	Sep. 30, 2019	Jan. 01, 2019
Operating Lease, Liability, Total	$ 328,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 565,000
Operating Lease, Liability, Total		$ 565,000
Plumas Statutory Trust 1 [Member] | Accrued Interest Receivable and Other Assets [Member]
Equity Method Investments	347,000
Plumas Statutory Trust II [Member] | Accrued Interest Receivable and Other Assets [Member]
Equity Method Investments	$ 178,000

Note 3 - Investment Securitie_3

Note 3 - Investment Securities Available for Sale (Details Textual)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain (Loss), before Tax, Total	$ 3,028,000		$ 3,028,000		$ (2,863,000)
Available-for-sale Securities Income Tax Expense (Benefit) on Accumulated Gross Unrealized Gains Losses	$ 895,000		$ 895,000		(846,000)
Number of Securities Sold During Period	0	0	40	18
Proceeds from Sale of Debt Securities, Available-for-sale			$ 11,379,000	$ 4,157,000
Available-for-sale Securities, Gross Realized Gain (Loss), Total			$ 20,000
Number of Securities Sold for Gain			23	8
Debt Securities, Available-for-sale, Realized Gain			$ 59,000	$ 4,000
Number of Securities Sold for Loss			17	10
Debt Securities, Available-for-sale, Realized Loss			$ 39,000	$ 12,000
Debt Securities, Available-for-sale, Realized Gain (Loss), Total				$ (8,000)
Debt Securities, Held-to-maturity, Total	$ 0		$ 0		0
Number of Investment Securities	191		191
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	50		50
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	27		27
Available-for-sale Debt Securities Pledged to Secure Deposits and Repurchase Agreements Amortized Cost Basis	$ 84,586,000		$ 84,586,000		92,166,000
Collateral Pledged [Member]
Debt Securities, Available-for-sale, Restricted	$ 85,280,000		$ 85,280,000		$ 90,122,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Number of Investment Securities	104		104
US States and Political Subdivisions Debt Securities [Member]
Number of Investment Securities	87		87

Note 3 - Investment Securitie_4

Note 3 - Investment Securities Available for Sale - Amortized Cost and Estimated Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investment securities available for sale, amortized cost	$ 166,488	$ 174,370
Investment securities available for sale, gross unrealized gains	3,300	361
Investment securities available for sale, gross unrealized losses	(272)	(3,224)
Investment securities available for sale, Estimated fair value	169,516	171,507
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, amortized cost	134,990	135,059
Investment securities available for sale, gross unrealized gains	1,969	240
Investment securities available for sale, gross unrealized losses	(253)	(2,621)
Investment securities available for sale, Estimated fair value	136,706	132,678
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, amortized cost	31,498	39,311
Investment securities available for sale, gross unrealized gains	1,331	121
Investment securities available for sale, gross unrealized losses	(19)	(603)
Investment securities available for sale, Estimated fair value	$ 32,810	$ 38,829

Note 3 - Investment Securitie_5

Note 3 - Investment Securities Available for Sale - Investment Securities With Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Less than 12 months fair value	$ 20,412	$ 45,748
Less than 12 months unrealized losses	64	553
12 months or more fair value	20,844	83,148
12 months or more unrealized losses	208	2,671
Total fair value	41,256	128,896
Total unrealized losses	272	3,224
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than 12 months fair value	18,348	26,478
Less than 12 months unrealized losses	45	269
12 months or more fair value	20,844	77,476
12 months or more unrealized losses	208	2,352
Total fair value	39,192	103,954
Total unrealized losses	253	2,621
US States and Political Subdivisions Debt Securities [Member]
Less than 12 months fair value	2,064	19,270
Less than 12 months unrealized losses	19	284
12 months or more fair value		5,672
12 months or more unrealized losses		319
Total fair value	2,064	24,942
Total unrealized losses	$ 19	$ 603

Note 3 - Investment Securitie_6

Note 3 - Investment Securities Available for Sale - Investment Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Within one year, amortized cost
Within one year, estimated fair value
After one year through five years, amortized cost	3,415
After one year through five years, estimated fair value	3,504
After five years through ten years, amortized cost	6,228
After five years through ten years, estimated fair value	6,430
After ten years, amortized cost	21,855
After ten years, estimated fair value	22,876
Amortized cost	166,488
Estimated fair value	169,516	$ 171,507
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Government-sponsored mortgage-backed securities, amortized cost	134,990
Government-sponsored mortgage-backed securities, estimated fair value	$ 136,706

Note 4 - Loans and the Allowa_3

Note 4 - Loans and the Allowance for Loan Losses (Details Textual) xbrli-pure in Thousands	3 Months Ended				9 Months Ended		12 Months Ended	21 Months Ended
	Sep. 30, 2019USD ($)	Mar. 31, 2019	Sep. 30, 2018USD ($)	Mar. 31, 2018	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2019USD ($)
Impaired Financing Receivable, Recorded Investment, Total	$ 2,642,000				$ 2,642,000		$ 1,275,000	$ 2,642,000
Impaired Financing Receivable, Related Allowance	235,000				235,000		181,000	235,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	633,000				633,000		424,000	633,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,009,000				2,009,000		851,000	2,009,000
Impaired Financing Receivable, Average Recorded Investment, Total					1,771,000	$ 1,738,000	1,160,000
Impaired Financing Receivable, Interest Income, Accrual Method, Total					45,000	56,000	71,000
Impaired Financing Receivable, Interest Income, Cash Basis Method, Total					0	0
Financing Receivable, Troubled Debt Restructuring	1,046,000				1,046,000		1,080,000	1,046,000
Financing Receivable Modifications Related Allowances	34,000				34,000		53,000	34,000
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	0				$ 0		0	$ 0
Financing Receivable, Modifications, Number of Contracts		0		0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts					0			0
Financing Receivable, Nonaccrual	2,598,000				$ 2,598,000		$ 1,117,000	$ 2,598,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	$ 47,000		$ 7,000		$ 116,000	36,000
Number of Loans, 90 Days Past Due and Still Accruing	0				0		0	0
Deferred Loan Origination Costs	$ 511,000		$ 703,000		$ 1,716,000	$ 1,937,000
Loan to Identify Credit Risks Threshold					$ 100,000

Note 4 - Loans and the Allowa_4

Note 4 - Loans and the Allowance for Loan Losses - Outstanding Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Loans	$ 601,756		$ 566,199
Deferred loan costs, net	3,471		3,257
Allowance for loan losses	(7,226)	$ (7,058)	(6,958)	$ (6,846)	$ (6,698)	$ (6,669)
Total net loans	598,001		562,498
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans	45,818		49,563
Allowance for loan losses	(763)	(721)	(914)	(768)	(853)	(725)
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans	77,529		69,160
Allowance for loan losses	(661)	(627)	(538)	(597)	(546)	(623)
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	292,461		271,710
Allowance for loan losses	(3,087)	(2,997)	(2,686)	(2,624)	(2,699)	(2,729)
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans	42,727		40,161
Allowance for loan losses	(640)	(597)	(758)	(908)	(780)	(783)
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	14,960		15,900
Allowance for loan losses	(174)	(177)	(214)	(200)	(195)	(231)
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans	37,067		38,490
Allowance for loan losses	(433)	(468)	(464)	(489)	(481)	(533)
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Loans	86,727		77,135
Allowance for loan losses	(1,366)	(1,372)	(1,289)	(1,166)	(1,044)	(946)
Consumer Portfolio Segment [Member] | Other Loans [Member]
Loans	4,467		4,080
Allowance for loan losses	$ (102)	$ (99)	$ (95)	$ (94)	$ (100)	$ (99)

Note 4 - Loans and the Allowa_5

Note 4 - Loans and the Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Beginning balance	$ 7,058	$ 6,698	$ 6,958	$ 6,669	$ 6,669
Provision charged to operations	300	300	900	800	1,000
Charge-offs	(217)	(225)	(874)	(988)	(1,191)
Recoveries	85	73	242	365	480
Ending balance	7,226	6,846	7,226	6,846	6,958
Allowance for loan losses, individually evaluated for impairment	235		235		181
Allowance for loan losses, collectively evaluated for impairment	6,991		6,991		6,777
Loans, individually evaluated for impairment	2,642		2,642		1,275
Loans, collectively evaluated for impairment	599,114		599,114		564,924
Ending balance	601,756		601,756		566,199
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Beginning balance	721	853	914	725	725
Provision charged to operations	86	(34)	14	345
Charge-offs	(49)	(59)	(186)	(325)
Recoveries	5	8	21	23
Ending balance	763	768	763	768	914
Allowance for loan losses, individually evaluated for impairment	83		83		128
Allowance for loan losses, collectively evaluated for impairment	680		680		786
Loans, individually evaluated for impairment	92		92		128
Loans, collectively evaluated for impairment	45,726		45,726		49,435
Ending balance	45,818		45,818		49,563
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Beginning balance	627	546	538	623	623
Provision charged to operations	34	51	123	(26)
Charge-offs
Recoveries
Ending balance	661	597	661	597	538
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment	661		661		538
Loans, individually evaluated for impairment	250		250		250
Loans, collectively evaluated for impairment	77,279		77,279		68,910
Ending balance	77,529		77,529		69,160
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Beginning balance	2,997	2,699	2,686	2,729	2,729
Provision charged to operations	88	(76)	399	(124)
Charge-offs
Recoveries	2	1	2	19
Ending balance	3,087	2,624	3,087	2,624	2,686
Allowance for loan losses, individually evaluated for impairment	118		118
Allowance for loan losses, collectively evaluated for impairment	2,969		2,969		2,686
Loans, individually evaluated for impairment	879		879		131
Loans, collectively evaluated for impairment	291,582		291,582		271,579
Ending balance	292,461		292,461		271,710
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Beginning balance	597	780	758	783	783
Provision charged to operations	43	127	(118)	122
Charge-offs
Recoveries		1		3
Ending balance	640	908	640	908	758
Allowance for loan losses, individually evaluated for impairment	6		6		12
Allowance for loan losses, collectively evaluated for impairment	634		634		746
Loans, individually evaluated for impairment	112		112		117
Loans, collectively evaluated for impairment	42,615		42,615		40,044
Ending balance	42,727		42,727		40,161
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Beginning balance	177	195	214	231	231
Provision charged to operations	(3)	3	(42)	(124)
Charge-offs
Recoveries		2	2	93
Ending balance	174	200	174	200	214
Allowance for loan losses, individually evaluated for impairment	28		28		41
Allowance for loan losses, collectively evaluated for impairment	146		146		173
Loans, individually evaluated for impairment	642		642		649
Loans, collectively evaluated for impairment	14,318		14,318		15,251
Ending balance	14,960		14,960		15,900
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Beginning balance	468	481	464	533	533
Provision charged to operations	(36)	7	(29)	(48)
Charge-offs	(1)		(6)
Recoveries	2	1	4	4
Ending balance	433	489	433	489	464
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment	433		433		464
Loans, individually evaluated for impairment	667		667
Loans, collectively evaluated for impairment	36,400		36,400		38,490
Ending balance	37,067		37,067		38,490
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Beginning balance	1,372	1,044	1,289	946	946
Provision charged to operations	62	216	494	635
Charge-offs	(140)	(152)	(624)	(628)
Recoveries	72	58	207	213
Ending balance	1,366	1,166	1,366	1,166	1,289
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment	1,366		1,366		1,289
Loans, individually evaluated for impairment
Loans, collectively evaluated for impairment	86,727		86,727		77,135
Ending balance	86,727		86,727		77,135
Consumer Portfolio Segment [Member] | Other Loans [Member]
Beginning balance	99	100	95	99	99
Provision charged to operations	26	6	59	20
Charge-offs	(27)	(14)	(58)	(35)
Recoveries	4	2	6	10
Ending balance	102	$ 94	102	$ 94	95
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment	102		102		95
Loans, individually evaluated for impairment
Loans, collectively evaluated for impairment	4,467		4,467		4,080
Ending balance	$ 4,467		$ 4,467		$ 4,080

Note 4 - Loans and the Allowa_6

Note 4 - Loans and the Allowance for Loan Losses - Loan Portfolio Allocated by Internal Risk Ratings (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans	$ 601,756	$ 566,199
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans	45,818	49,563
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans	77,529	69,160
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	292,461	271,710
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans	42,727	40,161
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	14,960	15,900
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans	37,067	38,490
Commercial and Residential Portfolio Segments [Member]
Loans	510,562	484,984
Pass [Member] | Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans	45,233	48,905
Pass [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans	74,739	68,910
Pass [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	286,504	268,159
Pass [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans	42,641	40,069
Pass [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	14,649	15,621
Pass [Member] | Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans	36,111	38,304
Pass [Member] | Commercial and Residential Portfolio Segments [Member]
Loans	499,877	479,968
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans	464	481
Special Mention [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans	2,790	250
Special Mention [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	5,078	3,420
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans
Special Mention [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans		124
Special Mention [Member] | Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans
Special Mention [Member] | Commercial and Residential Portfolio Segments [Member]
Loans	8,332	4,275
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans	121	177
Substandard [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans
Substandard [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	879	131
Substandard [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans	86	92
Substandard [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans	311	155
Substandard [Member] | Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans	956	186
Substandard [Member] | Commercial and Residential Portfolio Segments [Member]
Loans	2,353	741
Doubtful [Member] | Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans
Doubtful [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans
Doubtful [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans
Doubtful [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans
Doubtful [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans
Doubtful [Member] | Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans
Doubtful [Member] | Commercial and Residential Portfolio Segments [Member]
Loans

Note 4 - Loans and the Allowa_7

Note 4 - Loans and the Allowance for Loan Losses - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans	$ 601,756	$ 566,199
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Loans	90,926	80,805
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Loans	268	410
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Loans	86,727	77,135
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Performing Financial Instruments [Member]
Loans	86,464	76,734
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Nonperforming Financial Instruments [Member]
Loans	263	401
Consumer Portfolio Segment [Member] | Other Loans [Member]
Loans	4,467	4,080
Consumer Portfolio Segment [Member] | Other Loans [Member] | Performing Financial Instruments [Member]
Loans	4,462	4,071
Consumer Portfolio Segment [Member] | Other Loans [Member] | Nonperforming Financial Instruments [Member]
Loans	5	9
Consumer Portfolio Segment [Member] | Residential Portfolio Segment [Member]
Loans	$ 91,194
Consumer Portfolio Segment [Member] | Commercial Portfolio Segment [Member]
Loans		$ 81,215

Note 4 - Loans and the Allowa_8

Note 4 - Loans and the Allowance for Loan Losses - Allocation of the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Sep. 30, 2019	Dec. 31, 2018
Beginning balance	$ 7,058	$ 6,698	$ 6,958	$ 6,669	$ 6,669
Charge-offs	(217)	(225)	(874)	(988)	(1,191)
Recoveries	85	73	242	365	480
Provision	300	300	900	800	1,000
Ending balance	7,226	6,846	7,226	6,846	6,958
Charge-offs	(217)	(225)	(874)	(988)	(1,191)
Allowance for loan losses, individually evaluated for impairment						$ 235	$ 181
Allowance for loan losses, collectively evaluated for impairment						6,991	6,777
Loans	7,226	6,846	7,226	6,669	6,958	7,226	6,958
Loans, individually evaluated for impairment						2,642	1,275
Loans, collectively evaluated for impairment						599,114	564,924
Loans						601,756	566,199
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Beginning balance	721	853	914	725	725
Charge-offs	(49)	(59)	(186)	(325)
Recoveries	5	8	21	23
Provision	86	(34)	14	345
Ending balance	763	768	763	768	914
Charge-offs	(49)	(59)	(186)	(325)
Allowance for loan losses, individually evaluated for impairment						83	128
Allowance for loan losses, collectively evaluated for impairment						680	786
Loans	763	768	914	725	914	763	914
Loans, individually evaluated for impairment						92	128
Loans, collectively evaluated for impairment						45,726	49,435
Loans						45,818	49,563
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Beginning balance	627	546	538	623	623
Charge-offs
Recoveries
Provision	34	51	123	(26)
Ending balance	661	597	661	597	538
Charge-offs
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment						661	538
Loans	661	597	538	623	538	661	538
Loans, individually evaluated for impairment						250	250
Loans, collectively evaluated for impairment						77,279	68,910
Loans						77,529	69,160
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Beginning balance	2,997	2,699	2,686	2,729	2,729
Charge-offs
Recoveries	2	1	2	19
Provision	88	(76)	399	(124)
Ending balance	3,087	2,624	3,087	2,624	2,686
Charge-offs
Allowance for loan losses, individually evaluated for impairment						118
Allowance for loan losses, collectively evaluated for impairment						2,969	2,686
Loans	3,087	2,624	2,686	2,729	2,686	3,087	2,686
Loans, individually evaluated for impairment						879	131
Loans, collectively evaluated for impairment						291,582	271,579
Loans						292,461	271,710
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Beginning balance	597	780	758	783	783
Charge-offs
Recoveries		1		3
Provision	43	127	(118)	122
Ending balance	640	908	640	908	758
Charge-offs
Allowance for loan losses, individually evaluated for impairment						6	12
Allowance for loan losses, collectively evaluated for impairment						634	746
Loans	640	908	758	783	758	640	758
Loans, individually evaluated for impairment						112	117
Loans, collectively evaluated for impairment						42,615	40,044
Loans						42,727	40,161
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Beginning balance	177	195	214	231	231
Charge-offs
Recoveries		2	2	93
Provision	(3)	3	(42)	(124)
Ending balance	174	200	174	200	214
Charge-offs
Allowance for loan losses, individually evaluated for impairment						28	41
Allowance for loan losses, collectively evaluated for impairment						146	173
Loans	174	200	214	231	214	174	214
Loans, individually evaluated for impairment						642	649
Loans, collectively evaluated for impairment						14,318	15,251
Loans						14,960	15,900
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Beginning balance	468	481	464	533	533
Charge-offs	(1)		(6)
Recoveries	2	1	4	4
Provision	(36)	7	(29)	(48)
Ending balance	433	489	433	489	464
Charge-offs	(1)		(6)
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment						433	464
Loans	433	489	464	533	464	433	464
Loans, individually evaluated for impairment						667
Loans, collectively evaluated for impairment						36,400	38,490
Loans						37,067	38,490
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Beginning balance	1,372	1,044	1,289	946	946
Charge-offs	(140)	(152)	(624)	(628)
Recoveries	72	58	207	213
Provision	62	216	494	635
Ending balance	1,366	1,166	1,366	1,166	1,289
Charge-offs	(140)	(152)	(624)	(628)
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment						1,366	1,289
Loans	1,366	1,166	1,289	946	1,289	1,366	1,289
Loans, individually evaluated for impairment
Loans, collectively evaluated for impairment						86,727	77,135
Loans						86,727	77,135
Consumer Portfolio Segment [Member] | Other Loans [Member]
Beginning balance	99	100	95	99	99
Charge-offs	(27)	(14)	(58)	(35)
Recoveries	4	2	6	10
Provision	26	6	59	20
Ending balance	102	94	102	94	95
Charge-offs	(27)	(14)	(58)	(35)
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment						102	95
Loans	$ 102	$ 94	$ 95	$ 99	$ 95	102	95
Loans, individually evaluated for impairment
Loans, collectively evaluated for impairment						4,467	4,080
Loans						$ 4,467	$ 4,080

Note 4 - Loans and the Allowa_9

Note 4 - Loans and the Allowance for Loan Losses - Aging Analysis of the Loan Portfolio (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Loans, past due	$ 4,310,000	$ 3,688,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	2,598,000	1,117,000
Loans, current	597,446,000	562,511,000
Loans	601,756,000	566,199,000
Loans, 90 days past due and still accruing
Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	1,712,000	2,571,000
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Loans, past due	240,000	155,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	98,000	144,000
Loans, current	45,578,000	49,408,000
Loans	45,818,000	49,563,000
Loans, 90 days past due and still accruing
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	142,000	11,000
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans, past due
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual
Loans, current	77,529,000	69,160,000
Loans	77,529,000	69,160,000
Loans, 90 days past due and still accruing
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans, past due	942,000	131,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	879,000	131,000
Loans, current	291,519,000	271,579,000
Loans	292,461,000	271,710,000
Loans, 90 days past due and still accruing
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	63,000
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans, past due	86,000	92,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	86,000	92,000
Loans, current	42,641,000	40,069,000
Loans	42,727,000	40,161,000
Loans, 90 days past due and still accruing
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Loans, past due	316,000	309,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	311,000	155,000
Loans, current	14,644,000	15,591,000
Loans	14,960,000	15,900,000
Loans, 90 days past due and still accruing
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	5,000	154,000
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Loans, past due	1,181,000	782,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	956,000	186,000
Loans, current	35,886,000	37,708,000
Loans	37,067,000	38,490,000
Loans, 90 days past due and still accruing
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	225,000	596,000
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Loans, past due	1,500,000	2,126,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	263,000	401,000
Loans, current	85,227,000	75,009,000
Loans	86,727,000	77,135,000
Loans, 90 days past due and still accruing
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	1,237,000	1,725,000
Consumer Portfolio Segment [Member] | Other Loans [Member]
Loans, past due	45,000	93,000
Loans, 90 days past due and still accruing
Financing Receivable, Nonaccrual	5,000	8,000
Loans, current	4,422,000	3,987,000
Loans	4,467,000	4,080,000
Loans, 90 days past due and still accruing
Consumer Portfolio Segment [Member] | Other Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans, past due	$ 40,000	$ 85,000

Note 4 - Loans and the Allow_10

Note 4 - Loans and the Allowance for Loan Losses - Impaired Loans (Details) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Recorded investment with no related allowance recorded	$ 2,009,000		$ 851,000
Recorded investment with an allowance	633,000		424,000
Impaired Financing Receivable, Related Allowance	235,000		181,000
Recorded investment	2,642,000		1,275,000
Unpaid principal balance	2,698,000		1,299,000
Average recorded investment	1,771,000	$ 1,738,000	1,160,000
Interest income recognized	45,000	$ 56,000	71,000
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Recorded investment with no related allowance recorded
Unpaid principal balance with no related allowance recorded
Average recorded investment with no related allowance recorded
Interest income recognized with no related allowance recorded
Recorded investment with an allowance	92,000		128,000
Unpaid principal balance with allowance	92,000		128,000
Impaired Financing Receivable, Related Allowance	83,000		128,000
Average recorded investment with an allowance	2,000		1,000
Interest income recognized with an allowance
Recorded investment	92,000		128,000
Unpaid principal balance	92,000		128,000
Average recorded investment	2,000		1,000
Interest income recognized
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Recorded investment with no related allowance recorded	250,000		250,000
Unpaid principal balance with no related allowance recorded	250,000		250,000
Average recorded investment with no related allowance recorded	250,000		252,000
Interest income recognized with no related allowance recorded	13,000		19,000
Recorded investment with an allowance
Unpaid principal balance with allowance
Impaired Financing Receivable, Related Allowance
Average recorded investment with an allowance
Interest income recognized with an allowance
Recorded investment	250,000		250,000
Unpaid principal balance	250,000		250,000
Average recorded investment	250,000		252,000
Interest income recognized	13,000		19,000
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Recorded investment with no related allowance recorded	628,000		131,000
Unpaid principal balance with no related allowance recorded	641,000		144,000
Average recorded investment with no related allowance recorded	481,000		136,000
Interest income recognized with no related allowance recorded
Recorded investment with an allowance	251,000
Unpaid principal balance with allowance	257,000
Impaired Financing Receivable, Related Allowance	118,000
Average recorded investment with an allowance	101,000
Interest income recognized with an allowance
Recorded investment	879,000		131,000
Unpaid principal balance	898,000		144,000
Average recorded investment	582,000		136,000
Interest income recognized
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Recorded investment with no related allowance recorded
Unpaid principal balance with no related allowance recorded
Average recorded investment with no related allowance recorded
Interest income recognized with no related allowance recorded
Recorded investment with an allowance	112,000		117,000
Unpaid principal balance with allowance	112,000		117,000
Impaired Financing Receivable, Related Allowance	6,000		12,000
Average recorded investment with an allowance	112,000		120,000
Interest income recognized with an allowance	5,000		7,000
Recorded investment	112,000		117,000
Unpaid principal balance	112,000		117,000
Average recorded investment	112,000		120,000
Interest income recognized	5,000		7,000
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Recorded investment with no related allowance recorded	464,000		470,000
Unpaid principal balance with no related allowance recorded	477,000		481,000
Average recorded investment with no related allowance recorded	375,000		470,000
Interest income recognized with no related allowance recorded	22,000		38,000
Recorded investment with an allowance	178,000		179,000
Unpaid principal balance with allowance	178,000		179,000
Impaired Financing Receivable, Related Allowance	28,000		41,000
Average recorded investment with an allowance	178,000		181,000
Interest income recognized with an allowance	5,000		7,000
Recorded investment	642,000		649,000
Unpaid principal balance	655,000		660,000
Average recorded investment	553,000		651,000
Interest income recognized	27,000		45,000
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]
Recorded investment with no related allowance recorded	667,000
Unpaid principal balance with no related allowance recorded	691,000
Average recorded investment with no related allowance recorded	272,000
Interest income recognized with no related allowance recorded
Recorded investment with an allowance
Unpaid principal balance with allowance
Impaired Financing Receivable, Related Allowance
Average recorded investment with an allowance
Interest income recognized with an allowance
Recorded investment	667,000
Unpaid principal balance	691,000
Average recorded investment	272,000
Interest income recognized
Consumer Portfolio Segment [Member] | Automobile Loan [Member]
Recorded investment with no related allowance recorded
Unpaid principal balance with no related allowance recorded
Average recorded investment with no related allowance recorded
Interest income recognized with no related allowance recorded
Recorded investment with an allowance
Unpaid principal balance with allowance
Impaired Financing Receivable, Related Allowance
Average recorded investment with an allowance
Interest income recognized with an allowance
Recorded investment
Unpaid principal balance
Average recorded investment
Interest income recognized
Consumer Portfolio Segment [Member] | Other Loans [Member]
Recorded investment with no related allowance recorded
Unpaid principal balance with no related allowance recorded
Average recorded investment with no related allowance recorded
Interest income recognized with no related allowance recorded
Recorded investment with an allowance
Unpaid principal balance with allowance
Impaired Financing Receivable, Related Allowance
Average recorded investment with an allowance
Interest income recognized with an allowance
Recorded investment
Unpaid principal balance
Average recorded investment
Interest income recognized

Note 5 - Commitments and Cont_2

Note 5 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Unused Commitments to Extend Credit	$ 104,900	$ 126,900
Construction Loan Payable [Member]
Unused Commitments to Extend Credit	8,500
Standby Letters of Credit [Member]
Unused Commitments to Extend Credit	$ 431	$ 417

Note 6 - Leases (Details Textua

Note 6 - Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019
Operating Lease, Liability, Total	$ 328,000		$ 328,000
Operating Lease, Weighted Average Discount Rate, Percent	5.00%		5.00%
Lessee, Operating Lease, Liability, Payments, Due, Total	$ 347,000		$ 347,000
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	$ 19,000		$ 19,000
Operating Lease, Weighted Average Remaining Lease Term	2 years 73 days		2 years 73 days
Operating Leases, Rent Expense, Net, Total		$ 92,000		$ 275,000
Variable Lease, Cost	$ 10,000	$ 10,000	$ 32,000	$ 28,000
Operating Lease, Payments	71,000		247,000
Other Assets [Member]
Operating Lease, Right-of-Use Asset	328,000		328,000
Other Liabilities [Member]
Operating Lease, Liability, Total	$ 328,000		$ 328,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset					$ 565,000
Operating Lease, Liability, Total					$ 565,000

Note 6 - Leases - Maturity Anal

Note 6 - Leases - Maturity Analysis of Operating Lease Liability (Details)	Sep. 30, 2019USD ($)
Three months ended December 31, 2019	$ 62,000
Year ended December 31, 2020	163,000
Year ended December 31, 2021	63,000
Year ended December 31, 2022	59,000
	347,000
Less: Present value discount	(19,000)
Lease Liability September 30, 2019	$ 328,000

Note 6 - Leases - Leases Expens

Note 6 - Leases - Leases Expenses (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating leases	$ 71,000		$ 247,000
Short-term leases	37,000		63,000
Variable lease expense	10,000	$ 10,000	32,000	$ 28,000
Total lease expense	$ 118,000		$ 342,000

Note 6 - Leases - Future Minimu

Note 6 - Leases - Future Minimum Lease Payments (Details)	Dec. 31, 2018USD ($)
2019	$ 248,000
2020	163,000
2021	63,000
2022	59,000
2023
	$ 533,000

Note 7 - Earnings Per Share (De

Note 7 - Earnings Per Share (Details Textual) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	71,000	71,000	71,000	71,000

Note 7 - Earnings Per Share - C

Note 7 - Earnings Per Share - Calculation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 4,002	$ 3,696	$ 11,630	$ 10,422
Basic earnings per share (in dollars per share)	$ 0.78	$ 0.72	$ 2.26	$ 2.04
Diluted earnings per share (in dollars per share)	$ 0.77	$ 0.71	$ 2.22	$ 2
Basic shares (in shares)	5,160	5,122	5,153	5,100
Diluted shares (in shares)	5,227	5,225	5,227	5,219

Note 8 - Stock-based Compensa_3

Note 8 - Stock-based Compensation (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 307,000		$ 307,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			2 years 36 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			$ 311,000	$ 1,261,000
Share-based Payment Arrangement, Expense	50,000	$ 50,000	150,000	148,000
Share-based Payment Arrangement, Expense, Tax Benefit	$ 3,000	$ 3,000	10,000	10,000
Proceeds from Stock Options Exercised			103,000	291,000
Share-based Payment Arrangement, Exercise of Option, Tax Benefit			$ 24,000	$ 99,000
Stock Option Plan 2001 [Member]
Common Stock, Capital Shares Reserved for Future Issuance	0		0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	0		0
Stock Option Plan 2013 [Member]
Common Stock, Capital Shares Reserved for Future Issuance	415,085		415,085
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	238,500		238,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			0	76,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value			$ 197,000	$ 150,000
Stock Option Plan 2013 [Member] | Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years

Note 8 - Stock-based Compensa_4

Note 8 - Stock-based Compensation - Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2019USD ($)$ / sharesshares
Stock Option Plan 2001 [Member]
Options outstanding (in shares) | shares	6,193
Options exercised (in shares) | shares	(6,193)
Options outstanding (in shares) | shares
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 2.95
Options exercised, weighted average exercise price (in dollars per share) | $ / shares	2.95
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares
Stock Option Plan 2013 [Member]
Options outstanding (in shares) | shares	196,500
Options exercised (in shares) | shares	(17,515)
Options outstanding (in shares) | shares	176,585
Options cancelled (in shares) | shares	(2,400)
Options outstanding, weighted average remaining contractual term (Year)	4 years 292 days
Options exercisable (in shares) | shares	102,860
Options exercisable, weighted average remaining contractual term (Year)	4 years 36 days
Options expected to vest (in shares) | shares	65,328
Options expected to vest, weighted average remaining contractual term (Year)	5 years 292 days
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 13.84
Options exercised, weighted average exercise price (in dollars per share) | $ / shares	7.24
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	14.57
Options cancelled, weighted average exercise price (in dollars per share) | $ / shares	$ 8.75
Options outstanding, intrinsic value | $	$ 1,292,000
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 10.62
Options exercisable, intrinsic value | $	$ 1,059,000
Options expected to vest, weighted average exercise price (in dollars per share) | $ / shares	$ 20.07
Options expected to vest, intrinsic value | $	$ 233,000

Note 8 - Stock-based Compensa_5

Note 8 - Stock-based Compensation - Weighted Average Fair Value Assumptions (Details)	9 Months Ended
	Sep. 30, 2018$ / shares
Weighted-average fair value of options granted during the three months ended March 31, 2018 (in dollars per share)	$ 6.54
Share-based Payment Arrangement, Option [Member]
Expected life of stock options (Year)	5 years 36 days
Risk free interest rate	2.38%
Volatility	30.40%
Dividend yields	1.39%

Note 10 - Fair Value Measurem_3

Note 10 - Fair Value Measurement (Details Textual) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ (118,000)		$ (63,000)
Impaired Loans [Member]
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ (118,000)	$ (63,000)

Note 10 - Fair Value Measurem_4

Note 10 - Fair Value Measurement - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Estimated fair value	$ 169,516	$ 171,507
Reported Value Measurement [Member]
Cash and cash equivalents	77,880	46,686
Estimated fair value	169,516	171,507
Loans, net	598,001	562,498
FHLB stock	3,517	3,027
Accrued interest receivable	3,205	3,345
Deposits	776,183	726,565
Repurchase agreements	13,389	13,058
Junior subordinated deferrable interest debentures	10,310	10,310
Accrued interest payable	94	88
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	77,880	46,686
Estimated fair value	169,516	171,507
Loans, net	631,755	580,396
Accrued interest receivable	3,205	3,345
Deposits	776,193	726,649
Repurchase agreements	13,389	13,058
Junior subordinated deferrable interest debentures	7,473	8,092
Accrued interest payable	94	88
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	77,880	46,686
Accrued interest receivable	13	22
Deposits	733,927	669,599
Accrued interest payable	12	11
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated fair value	169,516	171,507
Accrued interest receivable	594	685
Deposits	42,266	57,050
Repurchase agreements	13,389	13,058
Accrued interest payable	60	52
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Loans, net	631,755	580,396
Accrued interest receivable	2,598	2,638
Junior subordinated deferrable interest debentures	7,473	8,092
Accrued interest payable	$ 22	$ 25

Note 10 - Fair Value Measurem_5

Note 10 - Fair Value Measurement - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale	$ 169,516	$ 171,507
Fair Value, Recurring [Member]
Debt Securities, Available-for-sale	169,516	171,507
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale	169,516	171,507
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Available-for-sale	136,706	132,678
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale	136,706	132,678
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale	136,706	132,678
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale	32,810	38,829
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale	32,810	38,829
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale	$ 32,810	$ 38,829

Note 10 - Fair Value Measurem_6

Note 10 - Fair Value Measurement - Assets and Liabilities Measured at Fair Value on a Non-recurring Basis (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Other real estate, Total gain (loss)		$ (38)
Asset, Total gain (loss)	(118)	(63)
Fair Value, Nonrecurring [Member]
Other real estate	1,094	1,170
Other real estate	1,094	1,170
Assets	1,643	1,170
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Other real estate	1,094	1,170
Other real estate	1,094	1,170
Assets	1,643	1,170
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Other real estate
Other real estate
Assets
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Other real estate
Other real estate
Assets
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Other real estate, Total gain (loss)	(118)
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member]
Impaired loans	133
Other real estate	347	347
Other real estate	347	347
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans	133
Other real estate	347	347
Other real estate	347	347
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Other real estate
Other real estate
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Other real estate
Other real estate
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Other real estate, Total gain (loss)
Impaired loans, Total gain (loss)		(25)
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Fair Value, Nonrecurring [Member]
Impaired loans
Other real estate	455	455
Other real estate	455	455
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans
Other real estate	455	455
Other real estate	455	455
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Other real estate
Other real estate
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Other real estate
Other real estate
Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Other real estate, Total gain (loss)		(38)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member]
Other real estate	292	368
Other real estate	292	368
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Other real estate	292	368
Other real estate	292	368
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Other real estate
Other real estate
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Other real estate
Other real estate

Note 10 - Fair Value Measurem_7

Note 10 - Fair Value Measurement - Quantitative Information About Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on a Non-recurring Basis (Details) $ in Thousands	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member]
Impaired loans, Measurement Input	0.1
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Maximum [Member]
Impaired loans, Measurement Input	(0.1)
Other real estate, Measurement Input	0.17	0.17
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Minimum [Member]
Other real estate, Measurement Input	0.16	0.16
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Weighted Average [Member]
Other real estate, Measurement Input	(0.16)	(0.16)
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Measurement Input, Cost to Sell [Member] | Maximum [Member]
Other real estate, Measurement Input	0.51	0.51
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Measurement Input, Cost to Sell [Member] | Minimum [Member]
Other real estate, Measurement Input	0.1	0.1
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Measurement Input, Cost to Sell [Member] | Weighted Average [Member]
Other real estate, Measurement Input	(0.24)	(0.24)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Maximum [Member]
Other real estate, Measurement Input	0.1	0.34
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Minimum [Member]
Other real estate, Measurement Input		0.1
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Measurement Input, Cost to Sell [Member] | Weighted Average [Member]
Other real estate, Measurement Input	(0.1)	(0.16)
Fair Value, Nonrecurring [Member]
Other real estate	$ 1,094	$ 1,170
Fair Value, Nonrecurring [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Impaired loans	133
Other real estate	347	347
Fair Value, Nonrecurring [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Impaired loans
Other real estate	455	455
Fair Value, Nonrecurring [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]
Other real estate	$ 292	$ 368